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is a significant concern for physicians. Central
, a1 v( h Z# l& }( A/ R- E8 uprecocious puberty (CPP), which is mediated) l3 k9 q" f! o( O5 Z \
through the hypothalamic pituitary gonadal axis, has
+ m z. z% U' \! j7 q. Q6 ta higher incidence of organic central nervous system
- J+ z7 o; H) g# s5 l/ B d6 |+ `lesions in boys.1,2 Virilization in boys, as manifested$ D, B( ^1 q5 F @$ f! h/ i
by enlargement of the penis, development of pubic
2 w' n3 L8 Y* q3 j/ R: M. n8 ^hair, and facial acne without enlargement of testi-) z& L6 \0 n" G/ m' h( ^
cles, suggests peripheral or pseudopuberty.1-3 We1 d3 l5 R# Y$ M# Z R1 M/ ` W
report a 16-month-old boy who presented with the
# V2 a; \5 E& l% K' M2 h; benlargement of the phallus and pubic hair develop- u g/ ~! w" y1 n3 t! D3 L
ment without testicular enlargement, which was due
5 B" ~7 B0 i) l0 M) Fto the unintentional exposure to androgen gel used by
7 P3 u- |9 ]* y" p6 h4 N$ H, c6 Fthe father. The family initially concealed this infor-
' Z# n' e4 i7 q7 y5 Imation, resulting in an extensive work-up for this6 N% z9 r% j/ x) x6 w* s( N Z2 p
child. Given the widespread and easy availability of
* Y# h2 c. J4 o! g# ^testosterone gel and cream, we believe this is proba-) e% t8 O5 m0 ]1 q% O2 x# w1 G
bly more common than the rare case report in the8 r- W% g9 W4 s+ ~# t0 {* L- p( p
literature.4: e. p. z5 S/ a* I U( K
Patient Report
% | f! D. L/ M( w! S- p) } QA 16-month-old white child was referred to the
3 \) H) { {8 |, zendocrine clinic by his pediatrician with the concern
* r* M2 m7 J6 V/ Yof early sexual development. His mother noticed1 C& N' S* Q2 q
light colored pubic hair development when he was3 J& [! C. b, O# S! i7 t6 V
From the 1Division of Pediatric Endocrinology, 2University of
5 }# [& a8 {2 m, P9 u: c+ RSouth Alabama Medical Center, Mobile, Alabama.
# x/ G* f) \! o2 ]Address correspondence to: Samar K. Bhowmick, MD, FACE,
* A6 F1 }& f% T; z. E6 yProfessor of Pediatrics, University of South Alabama, College of
/ n* e/ }4 x) P( k9 o! nMedicine, 2451 Fillingim St. Mastin 212, Mobile, AL 36617-2297;% f# ^( Y; B) x5 e
e-mail: [email protected].
* v) A: _( ~) w* e7 r) d# I* ?- zabout 6 to 7 months old, which progressively became
" q9 y0 {. D7 ~1 c+ o* ydarker. She was also concerned about the enlarge-& g3 F! K. U2 n% F
ment of his penis and frequent erections. The child: Q Q% O$ w& A: H8 n2 b) m: |
was the product of a full-term normal delivery, with
% i6 W7 }- O& e+ F" W, ya birth weight of 7 lb 14 oz, and birth length of0 e. m. p) w/ V7 z1 I8 t. H0 a# L
20 inches. He was breast-fed throughout the first year
2 a' ~, `8 \' G0 R' b7 q6 H% tof life and was still receiving breast milk along with1 n! w( |. K4 o& Y" M8 n9 z/ E
solid food. He had no hospitalizations or surgery,4 `, L) L! b$ U5 z( P4 d8 n8 U
and his psychosocial and psychomotor development
3 D8 ?1 O/ z' G0 { d9 ]# P$ Nwas age appropriate.
" t& A$ w" e% ]$ @The family history was remarkable for the father,0 H# f" h* ?1 m' j2 t
who was diagnosed with hypothyroidism at age 16,$ W; `+ f. d% w% d: {5 }: F
which was treated with thyroxine. The father’s% ]( L" m* o v5 q' U, {
height was 6 feet, and he went through a somewhat
- Y( k+ ?. [/ a; v/ Z) ~early puberty and had stopped growing by age 14.
4 Q" A4 V" K5 R3 Z: {" TThe father denied taking any other medication. The
& U; t. G8 B4 ichild’s mother was in good health. Her menarche
( i6 W6 ~7 Y& Y2 }3 c% F6 F6 k" E' Qwas at 11 years of age, and her height was at 5 feet
. m6 E. \. m8 l& N: b9 |3 {- z/ }5 inches. There was no other family history of pre-
. U5 W# D+ x R, zcocious sexual development in the first-degree rela-3 G# S, ]4 T: s5 P5 u# p: [3 [
tives. There were no siblings.
6 B* H+ _* d; ~+ @/ {4 {4 YPhysical Examination) c6 M* g9 y5 Q9 F5 G( k# c/ U: B
The physical examination revealed a very active,
3 B+ B0 @' C% D- zplayful, and healthy boy. The vital signs documented
9 M, B" x$ N$ }1 Va blood pressure of 85/50 mm Hg, his length was# Y8 F8 s, B, c
90 cm (>97th percentile), and his weight was 14.4 kg
\: ~$ m% A0 J! Q+ {7 J+ ]' s- s# b9 Y(also >97th percentile). The observed yearly growth+ W: C6 L0 {) q( q5 b5 y; b- \
velocity was 30 cm (12 inches). The examination of
$ O" t- E7 @4 t( {3 q: Rthe neck revealed no thyroid enlargement.
4 z7 ^6 {2 o6 p5 S' c3 lThe genitourinary examination was remarkable for" ~& |9 w; Q% j4 d" y& a
enlargement of the penis, with a stretched length of( W+ D- E' B( p5 _# W9 r6 C
8 cm and a width of 2 cm. The glans penis was very well
; i( `9 l6 D. s. Jdeveloped. The pubic hair was Tanner II, mostly around+ N6 [4 G. l, u' k c
540
' N& P: o) U; L( w* _* z% Hat University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from
w2 F: X; O2 rthe base of the phallus and was dark and curled. The. V' m) i$ W4 w: m; ^
testicular volume was prepubertal at 2 mL each. n8 ?+ w1 S- g. z: d) ^4 r; B% _
The skin was moist and smooth and somewhat
. X4 ^; ?6 S/ ~3 N; q! T/ a! r& i1 ]) woily. No axillary hair was noted. There were no5 Y9 V3 t3 T' N) \
abnormal skin pigmentations or café-au-lait spots.
- \6 v. x- {( y$ A/ zNeurologic evaluation showed deep tendon reflex 2+9 L7 l# v z0 ]% Y
bilateral and symmetrical. There was no suggestion+ o! P1 ~3 b6 m+ m
of papilledema.( B: Y" f0 H0 x+ u) m
Laboratory Evaluation8 @) P4 A! L: z, n2 O9 B
The bone age was consistent with 28 months by
7 N6 Y x q8 U9 @& E9 E5 h' Uusing the standard of Greulich and Pyle at a chrono-8 p, g5 U* _/ u0 y: v* z) z
logic age of 16 months (advanced).5 Chromosomal3 F+ v( I {, C" s8 ^
karyotype was 46XY. The thyroid function test
4 l4 N+ b. D' a! |' W8 Q, Tshowed a free T4 of 1.69 ng/dL, and thyroid stimu-
, t, F8 d; ^& k! tlating hormone level was 1.3 µIU/mL (both normal).
3 u3 m) v9 @+ GThe concentrations of serum electrolytes, blood! l0 j5 v( S, p$ J. Y/ z _
urea nitrogen, creatinine, and calcium all were: C# O$ a0 \1 D% n2 g$ m
within normal range for his age. The concentration
# D8 W; m( x6 @! Oof serum 17-hydroxyprogesterone was 16 ng/dL
, Y6 }! k" J$ j' A: ~9 D(normal, 3 to 90 ng/dL), androstenedione was 20
0 {, F6 v2 E7 }1 M+ |" m$ C+ @( Mng/dL (normal, 18 to 80 ng/dL), dehydroepiandros-4 F' x: \9 C! {8 w6 T0 b
terone was 38 ng/dL (normal, 50 to 760 ng/dL),: _( s% e( x' Y; L
desoxycorticosterone was 4.3 ng/dL (normal, 7 to" {! E6 |; Y) s7 t$ N& }( m. o
49ng/dL), 11-desoxycortisol (specific compound S)
2 ~1 a3 i2 b: [6 p& n& Pwas 43 ng/dL (normal, 10 to 156 ng/dL), serum cor-2 u: J, M5 c. b, C$ y) e% s
tisol was 7.6 µg/dL (normal, 2.8 to 23 µg/dL), total( G% b4 V* ~1 l! i
testosterone was 60 ng/dL (normal <3 to 10 ng/dL),, U( h) W1 v: _1 r& m
and β-human chorionic gonadotropin was less than
7 S V5 y: }' S' n7 R5 mIU/mL (normal <5 mIU/mL). Serum follicular. J: ]3 `2 i2 d# R% F$ \
stimulating hormone and leuteinizing hormone- B1 S2 ~9 x$ T! e- q
concentrations were less than 0.05 mIU/mL
" A2 _) h5 v# I3 {/ j9 l5 r(prepubertal).8 }" x: S* \( s* ?1 t) y
The parents were notified about the laboratory
3 J2 U% t. T2 xresults and were informed that all of the tests were
3 |' Z0 Y/ W, S, f9 D" Tnormal except the testosterone level was high. The
2 L3 x+ u( @- M+ ~3 M1 V dfollow-up visit was arranged within a few weeks to h( }, T4 J4 v) ^; Q' d
obtain testicular and abdominal sonograms; how-2 O! y" z: G) B. C6 _, _0 K
ever, the family did not return for 4 months.; ~8 q: _2 I ]; D+ K
Physical examination at this time revealed that the. s- f2 q" P/ d( ?) N
child had grown 2.5 cm in 4 months and had gained0 M8 s1 F5 K9 c- R+ L
2 kg of weight. Physical examination remained P( q& M% ]! B
unchanged. Surprisingly, the pubic hair almost com-$ \- K; D' v& ]* \
pletely disappeared except for a few vellous hairs at6 v" N) e# {7 D* a7 y4 D
the base of the phallus. Testicular volume was still 2
0 p( F6 j5 k1 |2 J9 g" v9 k$ bmL, and the size of the penis remained unchanged.
" i A+ V$ R- j. ?, Q# g, |The mother also said that the boy was no longer hav-2 n, U" [3 F: {' b
ing frequent erections.
4 ^, H8 F9 _) CBoth parents were again questioned about use of( H5 k6 Q! D# F: X* m
any ointment/creams that they may have applied to
6 Z. T* X0 ~0 C2 _the child’s skin. This time the father admitted the; X# V6 i3 O+ |
Topical Testosterone Exposure / Bhowmick et al 541$ E5 X2 }: @. ]5 R" ~ x
use of testosterone gel twice daily that he was apply-" l, d! x' @1 m/ F
ing over his own shoulders, chest, and back area for
- ], I+ H$ N2 D4 t% V- ka year. The father also revealed he was embarrassed- F4 r, {6 ^: @) h, R: }0 b; W
to disclose that he was using a testosterone gel pre-' j C" N8 p( A* i0 [
scribed by his family physician for decreased libido
. _. W$ g* P5 y& t2 Ssecondary to depression.
+ T" p' g0 U! kThe child slept in the same bed with parents.8 S: j* x/ K. E$ l9 W' I
The father would hug the baby and hold him on his
9 R. ~( \& g. i5 E2 j0 `1 gchest for a considerable period of time, causing sig-% U1 Y8 i' R, M% g7 w8 C/ P5 e: E, a+ P
nificant bare skin contact between baby and father.! |* u6 x- c3 j& b% l: m/ }
The father also admitted that after the phone call,
; \ a; O+ N. o2 Dwhen he learned the testosterone level in the baby
6 V& Q2 K; G1 U, w5 A8 ^; [' qwas high, he then read the product information6 R1 Q0 j6 p3 p
packet and concluded that it was most likely the rea-, [7 @# H. B4 { g
son for the child’s virilization. At that time, they- f. h: p1 z4 j8 S$ k& A" t5 I3 o
decided to put the baby in a separate bed, and the
) q4 T$ T7 r4 y$ ?father was not hugging him with bare skin and had
2 e6 U1 Y, _- @' ]7 r6 B" gbeen using protective clothing. A repeat testosterone
( O7 [+ K, r# F* h' Ntest was ordered, but the family did not go to the0 Y4 N6 {" S- W- }" U
laboratory to obtain the test.- e7 c" ?7 G+ S' g' H2 N
Discussion. ?4 Y. @* H8 e, u
Precocious puberty in boys is defined as secondary& f. a: C$ m0 J; t7 ?) d! m& H
sexual development before 9 years of age.1,4
6 Z3 `: F% g, d/ k/ H: bPrecocious puberty is termed as central (true) when
6 K" f6 E( N: X- X8 x& Qit is caused by the premature activation of hypo-
- W7 t! ~0 ]1 ?! Qthalamic pituitary gonadal axis. CPP is more com-" ]7 [' Z: M- A& G7 T
mon in girls than in boys.1,3 Most boys with CPP
5 x$ V1 ]# y* \/ qmay have a central nervous system lesion that is
% c/ M8 o& G8 _! |1 [responsible for the early activation of the hypothal-
' q7 c( W X+ ^0 F4 _, `amic pituitary gonadal axis.1-3 Thus, greater empha-: h2 K0 \! n" p* X
sis has been given to neuroradiologic imaging in5 {4 ^6 v: D- C; G
boys with precocious puberty. In addition to viril-
7 i. y/ p1 H; \5 h; Oization, the clinical hallmark of CPP is the symmet-
# h' T7 I7 i8 \" O& |rical testicular growth secondary to stimulation by; j& {$ q ]0 s: ]7 z
gonadotropins.1,33 [8 O, [$ O4 D: {. y/ A) o7 ]7 K
Gonadotropin-independent peripheral preco-
1 X- _2 I% o! W- wcious puberty in boys also results from inappropriate( m! ^% P/ f* s. W. o
androgenic stimulation from either endogenous or( n& F7 Y' L' V5 U
exogenous sources, nonpituitary gonadotropin stim-
' K# }* O3 Q: X% {ulation, and rare activating mutations.3 Virilizing( c5 j v$ l3 l0 V1 c
congenital adrenal hyperplasia producing excessive) {1 A2 O& Y% E' Q+ L& w9 J; k4 @
adrenal androgens is a common cause of precocious y" t! A8 } z+ F+ {6 r* u
puberty in boys.3,4
0 ?0 X5 [& D+ {The most common form of congenital adrenal
6 x7 E& e+ n- l( H) H8 f# {, ]hyperplasia is the 21-hydroxylase enzyme deficiency." M4 Q8 ?' u% B, f( D
The 11-β hydroxylase deficiency may also result in
& Z9 t1 r6 z8 x6 |% kexcessive adrenal androgen production, and rarely,$ x% _5 y- c1 H r& w L4 P
an adrenal tumor may also cause adrenal androgen- `+ ~5 _" U( r! t) V
excess.1,3
! }4 q7 L" `( iat University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from5 v2 f( T& x% V; Y3 V: o
542 Clinical Pediatrics / Vol. 46, No. 6, July 2007
+ L8 F( W1 d( }2 L4 DA unique entity of male-limited gonadotropin-! h9 D7 R. |. O
independent precocious puberty, which is also known
# A) {# ~, Z" @" n7 Nas testotoxicosis, may cause precocious puberty at a, L( E; }6 J& D3 @/ q0 F
very young age. The physical findings in these boys/ a- m8 N; ~( o# g( K
with this disorder are full pubertal development,6 [# @# K: j, T% V# m
including bilateral testicular growth, similar to boys. \$ p9 ~( l7 `
with CPP. The gonadotropin levels in this disorder: W/ O) d7 X( D) \
are suppressed to prepubertal levels and do not show
7 A7 \8 l L! S. d0 d7 g) S0 z: [$ Epubertal response of gonadotropin after gonadotropin-& Q! o, C$ k% D, X# O/ I
releasing hormone stimulation. This is a sex-linked
r7 M; M7 x- m3 \autosomal dominant disorder that affects only
; c& m$ k M8 d, W5 V& omales; therefore, other male members of the family
# a, F# H6 P. d: Z- M$ ]% E3 e6 h% wmay have similar precocious puberty.3
3 l; \' X% S( g* u& ]4 _; hIn our patient, physical examination was incon-
* `* O2 e! a+ Q, U$ c4 }sistent with true precocious puberty since his testi-
# G1 Y1 ?$ a% Gcles were prepubertal in size. However, testotoxicosis
" b- G' J7 u# B mwas in the differential diagnosis because his father
% k4 g% j5 d9 w% o! V+ Z7 D0 D) N* Estarted puberty somewhat early, and occasionally,
+ S8 i# X5 i9 U2 vtesticular enlargement is not that evident in the
) u" T( T0 V6 K# f, S/ u2 }: u7 Z/ @beginning of this process.1 In the absence of a neg-
. L0 |4 l7 l6 y& l2 N3 wative initial history of androgen exposure, our
5 @( k A# ^1 Pbiggest concern was virilizing adrenal hyperplasia,
; U/ H7 u. y2 J9 feither 21-hydroxylase deficiency or 11-β hydroxylase
4 M! t6 O5 o/ O7 pdeficiency. Those diagnoses were excluded by find- `1 j6 \4 g0 j3 z' \$ t
ing the normal level of adrenal steroids.
, O. H+ t3 V2 u; o- bThe diagnosis of exogenous androgens was strongly
, `& g" y1 P ?0 H* W4 p0 f, Rsuspected in a follow-up visit after 4 months because
+ f( E, @- I) w# s* ]the physical examination revealed the complete disap-
" H* G: U$ Z/ H6 }! q* B7 A5 k' Q7 upearance of pubic hair, normal growth velocity, and
( w" s+ E5 j" _$ f+ d' I# U6 g, Ddecreased erections. The father admitted using a testos-
% H6 j6 C8 o- U" I9 z5 V1 nterone gel, which he concealed at first visit. He was
/ k$ T% w6 w6 ^ Vusing it rather frequently, twice a day. The Physicians’# \" ^* H- V2 R7 C) x: C8 k7 F
Desk Reference, or package insert of this product, gel or8 w. L# w7 X1 O9 `! U
cream, cautions about dermal testosterone transfer to
" j& R/ q# j) F* n4 R4 Munprotected females through direct skin exposure.
8 G' D8 u' M' a* A- w4 K) _Serum testosterone level was found to be 2 times the( V b8 U4 f* ?) L- I
baseline value in those females who were exposed to
; p' [! E! V' S3 r; \even 15 minutes of direct skin contact with their male3 T2 w3 K. V- Z: m3 y) q0 d6 c# o
partners.6 However, when a shirt covered the applica-
0 {* H( w8 Y& ?; L( ^tion site, this testosterone transfer was prevented.
( ?0 {2 Q. s" V' `4 ]$ K6 YOur patient’s testosterone level was 60 ng/mL,% a. y* Y* E; R4 l5 J8 v
which was clearly high. Some studies suggest that" L' H* q5 ~) f9 z( ^) e
dermal conversion of testosterone to dihydrotestos-2 [3 k( v: k2 U; `2 b
terone, which is a more potent metabolite, is more
4 M/ f" u, H/ k: w$ U4 vactive in young children exposed to testosterone8 v4 a- C+ ?3 C8 g2 X1 o( G$ y
exogenously7; however, we did not measure a dihy-
5 }! N# H3 F1 Bdrotestosterone level in our patient. In addition to
) X5 S. x! C* evirilization, exposure to exogenous testosterone in% d7 D! s- R$ E# L* I! [7 h! \
children results in an increase in growth velocity and: {# p+ @7 r% j' J, v' e' |
advanced bone age, as seen in our patient.
8 T( \: f3 o7 ~# |; S) Y3 Z) dThe long-term effect of androgen exposure during1 p5 r2 d9 @( b4 g3 X' V" [
early childhood on pubertal development and final
4 E& _. \" ?* m% Ladult height are not fully known and always remain
9 [% {8 k$ f) x9 W$ g1 M; \a concern. Children treated with short-term testos-' P8 C& @: }! X0 K6 s4 ? E
terone injection or topical androgen may exhibit some% e e, W+ Y6 J9 B/ a; k, U8 r, f
acceleration of the skeletal maturation; however, after7 T! g5 a- f7 W: Y
cessation of treatment, the rate of bone maturation6 Z" S p! M- ?3 N
decelerates and gradually returns to normal.8,9
( f5 p$ k% o8 EThere are conflicting reports and controversy0 i: r1 T/ f! R' z g2 h |
over the effect of early androgen exposure on adult5 P- ]3 X, P3 N6 i4 A
penile length.10,11 Some reports suggest subnormal
5 p8 W0 d7 g3 K6 ~ w3 O; b8 U8 Wadult penile length, apparently because of downreg-( T3 i) O: o7 r! p6 h2 X" }3 B
ulation of androgen receptor number.10,12 However,* `0 e( {, [( R+ H' j, Y' D
Sutherland et al13 did not find a correlation between* n& U) X: i; b; ~/ ]; P
childhood testosterone exposure and reduced adult. J3 x5 R0 A. F+ v/ P' |, }% ]- z
penile length in clinical studies.
9 l8 h% C1 I5 Y+ f; Q/ j; }7 BNonetheless, we do not believe our patient is
, \, P/ M2 v* j! ^0 fgoing to experience any of the untoward effects from
! Q5 j' A* o& U \0 Btestosterone exposure as mentioned earlier because9 _8 H" O4 `% k) n
the exposure was not for a prolonged period of time.; a4 b: Y) R0 t3 R
Although the bone age was advanced at the time of
! g' _$ |! n- h. C! U; u! i5 U9 I2 rdiagnosis, the child had a normal growth velocity at: k, t+ J3 N% m7 F
the follow-up visit. It is hoped that his final adult
& G1 a( @' j [' zheight will not be affected.
1 A* F( D; e: C8 ^! ?+ L3 EAlthough rarely reported, the widespread avail-
+ c1 t: j) K3 p( F k4 `ability of androgen products in our society may1 D6 H% g, h9 b9 U' m4 Z
indeed cause more virilization in male or female
1 y1 b G1 {! F& n1 z% R+ @2 |. achildren than one would realize. Exposure to andro- B: } ?6 z; Y' z9 H
gen products must be considered and specific ques- M; T5 y' Y( C* j! N
tioning about the use of a testosterone product or$ `: ?+ |) x+ A* _9 Y$ |" g
gel should be asked of the family members during; B+ y: d }5 ~; b d5 L" D) I; T D3 D
the evaluation of any children who present with vir-9 @0 |/ T/ t9 Q4 b2 T. f2 `
ilization or peripheral precocious puberty. The diag- I. m1 p9 o. \8 e
nosis can be established by just a few tests and by
/ S; F, e, g* A) c! wappropriate history. The inability to obtain such a6 w( i3 o" ^# L
history, or failure to ask the specific questions, may
/ s. ^5 m, E+ f2 D3 f9 E4 }result in extensive, unnecessary, and expensive, j9 f8 A8 H# K
investigation. The primary care physician should be; e; O7 P, `: P$ }# E ]+ b3 X
aware of this fact, because most of these children
+ r; z5 N. f9 `5 @$ L1 T( u4 Wmay initially present in their practice. The Physicians’
/ Q0 W. W) {) gDesk Reference and package insert should also put a
; |0 j( _- j# }4 ?warning about the virilizing effect on a male or
' Y$ T! _1 M6 y6 w8 \! Ifemale child who might come in contact with some-/ l5 P5 L8 I- U5 D" N9 L- K
one using any of these products.
0 V! u0 t, j+ `% a6 n/ ~- H( ?8 i5 Z, IReferences
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" B6 Q% `7 g# c7 \& h, J2. Rivarola M, Belgorosky A, Mendilaharzu H, et al. Precocious
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% J9 a3 l' x/ u( IPediatric Endocrinology. 4th ed. New York, NY: Marcel
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% ^5 m, T( R) ]4. Yu YM, Punyasavatsu N, Elder D, D’Ercole AJ. Sexual! |3 _2 ~3 x- A8 |
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7 W8 z+ P$ I5 O8 C3 a. zexposure to testosterone. Pediatrics. 1999;104:e23. R: w1 |- \0 }7 I
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Skeletal Development of the Hand and Wrist. 2nd ed.
8 a5 _- {, d3 g6 WStanford, CA: Stanford University Press; 1959." g9 w f A6 K
6. Physicians’ Desk Reference. Androgel 1% testosterone,+ S& R) I! y' I0 A; _
Unimed Pharmaceutical Inc. Montvale, NJ: Medical1 T9 a5 h& a f/ ^0 y
Economics Company, Inc; 2004:3239-3241.
5 }6 H( s1 @+ d t$ B7. Klugo RC, Cerny JC. Response of micropenis to topical# W, D& T% ], x1 A5 F" W
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