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is a significant concern for physicians. Central
4 F8 V5 S9 w1 j: Y6 jprecocious puberty (CPP), which is mediated
7 F! f5 Q" N7 E# z: tthrough the hypothalamic pituitary gonadal axis, has
1 C4 R0 X& c5 ^, O. Wa higher incidence of organic central nervous system* I }: p+ y: ?9 U( n
lesions in boys.1,2 Virilization in boys, as manifested
- A8 \/ w# X$ @( J4 Q% w3 F# wby enlargement of the penis, development of pubic
4 N% m% a3 v1 I$ b& khair, and facial acne without enlargement of testi-9 m9 t* g9 e# K
cles, suggests peripheral or pseudopuberty.1-3 We
2 J) {0 j' q) B6 nreport a 16-month-old boy who presented with the
( t: c1 i. C. Z. h: Z/ renlargement of the phallus and pubic hair develop-6 @; ^0 o( U3 R
ment without testicular enlargement, which was due3 s! R- J- u, C9 c/ e/ T6 Z7 l
to the unintentional exposure to androgen gel used by V A0 {5 X/ J/ q& S* M+ E
the father. The family initially concealed this infor-2 E9 Q6 V- p6 l7 f
mation, resulting in an extensive work-up for this
& s/ r6 C( ^ S9 cchild. Given the widespread and easy availability of
% @! g0 A1 H. K. e6 Vtestosterone gel and cream, we believe this is proba-8 h1 f! f2 s# B
bly more common than the rare case report in the
' A1 P/ m/ C/ b: {8 Z- N2 h/ Z0 Qliterature.4, [- e4 m5 ^2 L3 h8 @4 _
Patient Report* I' [5 _6 [ @5 a; V. a1 o
A 16-month-old white child was referred to the% P( D# w m* r `
endocrine clinic by his pediatrician with the concern8 y* h0 N% y! u* `
of early sexual development. His mother noticed
e1 T0 v$ W7 h2 S9 ^# glight colored pubic hair development when he was2 ]* E# s( |0 P X* w! [- i
From the 1Division of Pediatric Endocrinology, 2University of0 _3 Y" f9 _4 h' H; r/ d" c
South Alabama Medical Center, Mobile, Alabama., j% P i, F$ q6 m |% X7 V0 Y- Z# v
Address correspondence to: Samar K. Bhowmick, MD, FACE,
+ ]* X% g2 o2 ~) L1 Y$ A: e) }( RProfessor of Pediatrics, University of South Alabama, College of
4 L- {* U) x6 x0 m8 l8 `Medicine, 2451 Fillingim St. Mastin 212, Mobile, AL 36617-2297;
- ^! l8 ?- f4 d0 D3 ?' d" s+ t6 m% ae-mail: [email protected].' ?' z7 n. h1 e0 H. E: h! J' m& E
about 6 to 7 months old, which progressively became7 y0 ^, t8 j) H2 F
darker. She was also concerned about the enlarge-* L9 y- Q k* i
ment of his penis and frequent erections. The child% {8 p) w2 b8 ^+ l0 D
was the product of a full-term normal delivery, with
3 d( g( d8 S& y$ j# u& O/ ^+ Ya birth weight of 7 lb 14 oz, and birth length of
0 }) i2 {5 V" l* u; b4 p) C' f @20 inches. He was breast-fed throughout the first year
& R a! H) n, D- a" b- Jof life and was still receiving breast milk along with4 F* F" [8 S2 o# Z# t' b# `
solid food. He had no hospitalizations or surgery,
& X4 B" k7 g+ Aand his psychosocial and psychomotor development, I2 \7 K1 q# J; c+ ?
was age appropriate.) Q' I4 @0 [' G# z9 j
The family history was remarkable for the father,& V3 b H0 l3 M$ Q r( t2 m
who was diagnosed with hypothyroidism at age 16,, E# N: V6 e& D, \$ ~4 R/ e$ Z
which was treated with thyroxine. The father’s4 j! b1 t6 c' s
height was 6 feet, and he went through a somewhat
( f" L, o4 ~ aearly puberty and had stopped growing by age 14.
; j2 b- f# k& V. z. Y- H: FThe father denied taking any other medication. The
2 C& D) r* m( A* p! i' Rchild’s mother was in good health. Her menarche
' O) ?( X5 K& y2 Zwas at 11 years of age, and her height was at 5 feet
Z: ~! Y8 m. M* r5 inches. There was no other family history of pre-2 \7 H6 p C1 P+ A# N; j
cocious sexual development in the first-degree rela-
& ^! t5 A9 |6 utives. There were no siblings.
( ?& Y5 t" A. e7 p vPhysical Examination
$ |1 A9 _+ n& ?# gThe physical examination revealed a very active,4 b, k( D% H) ^1 u0 Q
playful, and healthy boy. The vital signs documented& ]6 C: D1 C/ g" F9 _
a blood pressure of 85/50 mm Hg, his length was5 s1 Q( Y1 l, K" h) ~
90 cm (>97th percentile), and his weight was 14.4 kg/ {( u$ v" E d. h* r( H$ `. {) P& b
(also >97th percentile). The observed yearly growth' K: ?+ F0 Y0 K' j
velocity was 30 cm (12 inches). The examination of
6 h+ F& L6 P4 V/ gthe neck revealed no thyroid enlargement.8 z6 a7 }% C+ a- ^; Y
The genitourinary examination was remarkable for
9 s( u8 F+ D% D. e6 G8 H" J2 Genlargement of the penis, with a stretched length of2 D# |7 T, X7 f: [; B$ E3 ~
8 cm and a width of 2 cm. The glans penis was very well% p, f5 p! F" v8 |$ L! {
developed. The pubic hair was Tanner II, mostly around
" g2 e! f5 D' d' N& Y540 O7 l" z9 j: v1 c( z2 O
at University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from
7 H0 M7 v% |& i2 zthe base of the phallus and was dark and curled. The
; n0 w4 A* V3 O; J2 qtesticular volume was prepubertal at 2 mL each.% {1 B' Z7 m* W" Z
The skin was moist and smooth and somewhat
4 T. o" b& I$ K( hoily. No axillary hair was noted. There were no8 v. K+ w. m. F2 n4 _" t
abnormal skin pigmentations or café-au-lait spots.% X' F) u0 U$ K/ ]) D0 t. z6 U) I
Neurologic evaluation showed deep tendon reflex 2+
- P# j8 b% Z# d3 F4 V# d# {4 v4 Qbilateral and symmetrical. There was no suggestion
7 T5 J }) L n$ q+ O" }6 Fof papilledema.8 l8 }9 {0 `$ m' d/ Q
Laboratory Evaluation
) B$ H$ J- F1 q" i- r! d* Y0 }6 VThe bone age was consistent with 28 months by% F: x m3 J! H7 \% T% V! x
using the standard of Greulich and Pyle at a chrono-
# `( r2 p$ H, N* i% L7 K" glogic age of 16 months (advanced).5 Chromosomal
# E8 r0 G8 U8 {$ q( n8 z2 Mkaryotype was 46XY. The thyroid function test* V N( r5 G$ f A# y) J& ]) `
showed a free T4 of 1.69 ng/dL, and thyroid stimu-
) b, G5 ~: Q9 U; `2 b7 t) F! Y( Jlating hormone level was 1.3 µIU/mL (both normal).. i: m4 U1 ~ N/ s: {5 ^7 t
The concentrations of serum electrolytes, blood
/ J! u3 [3 |0 l7 u+ V3 T; Gurea nitrogen, creatinine, and calcium all were6 ^$ l. e1 _& [, t
within normal range for his age. The concentration
3 a' i* l4 h( {. j4 uof serum 17-hydroxyprogesterone was 16 ng/dL/ l' N+ b) }" ^
(normal, 3 to 90 ng/dL), androstenedione was 205 @! V) T7 R! B' {9 ^* ]+ R! M# c9 A
ng/dL (normal, 18 to 80 ng/dL), dehydroepiandros- K9 b" c( E+ c! ~% \* h5 y* F
terone was 38 ng/dL (normal, 50 to 760 ng/dL),+ j6 l- U) X+ Y/ [ A
desoxycorticosterone was 4.3 ng/dL (normal, 7 to
/ z4 _# }7 h( s( }" h) e! r! g49ng/dL), 11-desoxycortisol (specific compound S)4 c; G" e) e, G t! P9 l1 U
was 43 ng/dL (normal, 10 to 156 ng/dL), serum cor-1 c$ s' p3 N( o, W( l
tisol was 7.6 µg/dL (normal, 2.8 to 23 µg/dL), total) _ z3 u( p) ]" i' A9 G8 T
testosterone was 60 ng/dL (normal <3 to 10 ng/dL),4 B( i9 [4 F! _$ S
and β-human chorionic gonadotropin was less than8 R: m: `9 X+ P. h
5 mIU/mL (normal <5 mIU/mL). Serum follicular
" l& q" H8 s) d9 |( nstimulating hormone and leuteinizing hormone
4 q% N/ S0 x3 @5 b4 l0 e; p; T+ }concentrations were less than 0.05 mIU/mL
" G1 | d, c. D b, Z& Q3 S) S(prepubertal).1 A* p0 J# h: R) s! o+ U5 l
The parents were notified about the laboratory
3 N0 n( j7 j- |results and were informed that all of the tests were
5 g- {% }: x* T' ]% J' l. |normal except the testosterone level was high. The
/ | `8 p9 @( t( Kfollow-up visit was arranged within a few weeks to. ^0 d( b- R/ S
obtain testicular and abdominal sonograms; how-
' ~) s$ D5 w8 Z& L5 b. @ever, the family did not return for 4 months.
! H( `1 a; i- c: \; {) JPhysical examination at this time revealed that the9 D v" c0 N! W
child had grown 2.5 cm in 4 months and had gained
& m3 C F: T! y N; W4 F2 kg of weight. Physical examination remained
& u* t* m9 N( ^2 k7 lunchanged. Surprisingly, the pubic hair almost com-, q8 s8 M2 i" o( s0 D- ~
pletely disappeared except for a few vellous hairs at
8 M0 X- `: Q) X8 M7 hthe base of the phallus. Testicular volume was still 2
$ b4 [5 Y. X. l/ X v8 @mL, and the size of the penis remained unchanged.
! I1 N& q8 j0 Y7 D3 fThe mother also said that the boy was no longer hav-+ t+ i: S' [ r+ T. I3 L
ing frequent erections.+ a$ D6 J+ s$ Q$ s) ?: h. x
Both parents were again questioned about use of- A& C1 V6 w% P% P
any ointment/creams that they may have applied to
" v( H d$ J" M# \( k! pthe child’s skin. This time the father admitted the& V; A+ n( m0 H( _
Topical Testosterone Exposure / Bhowmick et al 541# D7 l" m4 _% T/ }
use of testosterone gel twice daily that he was apply-; b, C; `7 W$ u
ing over his own shoulders, chest, and back area for+ y, K2 ^! j/ P$ A9 x( L
a year. The father also revealed he was embarrassed
; l) Y9 g* I4 T; i U' nto disclose that he was using a testosterone gel pre-
5 L3 F% l( O" j; [scribed by his family physician for decreased libido
/ e/ I8 N6 K. [+ I H0 psecondary to depression./ m' s, _$ e' _. o3 n* l. w
The child slept in the same bed with parents.
. P/ |) P4 l: `2 FThe father would hug the baby and hold him on his
6 M$ R$ @& p! { T2 T( R4 Uchest for a considerable period of time, causing sig-
1 S7 w5 B/ i# N) r+ }7 Onificant bare skin contact between baby and father.* X( O0 P8 _! o4 ~* k' G
The father also admitted that after the phone call,
8 m' \; U8 w3 h0 p- n. V. ^& ^when he learned the testosterone level in the baby
- N s4 ?( P r4 ~* lwas high, he then read the product information# x4 V! {* Q% E: E- U5 g) b
packet and concluded that it was most likely the rea-
) _; U9 J1 a8 | c! C# a0 Oson for the child’s virilization. At that time, they
7 L) h7 `( x2 F8 B5 t sdecided to put the baby in a separate bed, and the
! Z6 b9 n$ t2 ^8 M. L' h) ffather was not hugging him with bare skin and had
4 `1 j5 Q) V( E8 Y7 x9 {been using protective clothing. A repeat testosterone
, `" t, U) y# L [2 s( Ctest was ordered, but the family did not go to the& A# J; ~4 M* l O
laboratory to obtain the test.
# \7 k; g8 }% a7 `+ b. CDiscussion- Y& p+ C- i0 U7 ~0 |0 u# c
Precocious puberty in boys is defined as secondary
, V% w0 I. O, `3 k" C6 p# F; a3 msexual development before 9 years of age.1,4$ Q0 F0 M; X3 x- E6 I& w% v
Precocious puberty is termed as central (true) when, P* n y* S4 ?4 W5 `+ @
it is caused by the premature activation of hypo-5 G4 B$ q6 u; v, f, ^" B
thalamic pituitary gonadal axis. CPP is more com-
/ b0 h9 F7 P" o; U2 Fmon in girls than in boys.1,3 Most boys with CPP) ?1 p, \2 @2 M# A* u3 }+ \
may have a central nervous system lesion that is
2 g0 T+ ]7 Y8 q0 V# ^" v2 {responsible for the early activation of the hypothal-
3 O! k2 f$ F' h. L+ vamic pituitary gonadal axis.1-3 Thus, greater empha-/ F3 n8 Z9 z, g: Z$ y v1 H
sis has been given to neuroradiologic imaging in
* V* N; a7 V* S) l# Tboys with precocious puberty. In addition to viril-4 @0 q! k9 w, Y
ization, the clinical hallmark of CPP is the symmet-
5 X- b( U; q% ~5 Wrical testicular growth secondary to stimulation by
! ]: z+ w7 O2 h# }+ Ggonadotropins.1,3
# ]1 Q" ]! w0 |$ W$ ZGonadotropin-independent peripheral preco-' A& u# I6 a- c# p/ n
cious puberty in boys also results from inappropriate1 r, J6 c x, B9 t
androgenic stimulation from either endogenous or- K0 s' z" [/ N2 }. y3 Q0 y
exogenous sources, nonpituitary gonadotropin stim-9 }$ z$ \' X, O. z$ _( w
ulation, and rare activating mutations.3 Virilizing$ k4 v. k6 b; F6 w% g" h) B: t
congenital adrenal hyperplasia producing excessive
- e9 Z" C* P2 X: h8 t/ ^3 _adrenal androgens is a common cause of precocious
- D# N+ k9 k* s5 M' C7 s& spuberty in boys.3,4: Z2 |8 E8 f) Y+ r& D. e6 o/ A
The most common form of congenital adrenal! j Y* U8 s9 W2 h3 Y# M
hyperplasia is the 21-hydroxylase enzyme deficiency.
: b3 a( p6 {9 C+ S9 e/ p+ vThe 11-β hydroxylase deficiency may also result in
5 X5 f# w$ Z6 `! j ?excessive adrenal androgen production, and rarely,8 P- n4 a" m& i
an adrenal tumor may also cause adrenal androgen+ ]0 V* `2 `% L( G9 t8 A
excess.1,3" ~1 K- v* [) R4 y) ^- m
at University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from
2 M5 m5 n& v4 d% t; J R# W542 Clinical Pediatrics / Vol. 46, No. 6, July 20078 q( Z3 _, G6 c
A unique entity of male-limited gonadotropin-
# b, q/ k$ X( T, Y+ c* I2 w( S7 D9 bindependent precocious puberty, which is also known* I6 O7 {$ I, z
as testotoxicosis, may cause precocious puberty at a
- B+ L3 X' @6 P4 v, |6 g& hvery young age. The physical findings in these boys* r. ^2 P3 m# ~% y, S
with this disorder are full pubertal development,5 r! ?( O. E O- c# }- a2 I
including bilateral testicular growth, similar to boys
6 o& I/ j+ S. @6 dwith CPP. The gonadotropin levels in this disorder4 |" X/ L& u4 f3 `
are suppressed to prepubertal levels and do not show) f# x, n( Y% d# S
pubertal response of gonadotropin after gonadotropin-7 k# L7 t& K+ f, v* Q7 N
releasing hormone stimulation. This is a sex-linked2 P2 ]5 A( t! R
autosomal dominant disorder that affects only4 O3 f3 [( x3 J/ u
males; therefore, other male members of the family# y* A( Y% }9 x7 `* S2 F# [/ ]: @$ h
may have similar precocious puberty.3
1 r6 e8 z# D, l6 H9 pIn our patient, physical examination was incon-6 [3 u& q. U Y9 U$ q: Y
sistent with true precocious puberty since his testi-0 D9 m8 V. i0 s
cles were prepubertal in size. However, testotoxicosis
/ z- E$ G ^7 |/ T( xwas in the differential diagnosis because his father
; L0 O0 t8 i$ _$ A* dstarted puberty somewhat early, and occasionally,
: A, ~: P7 f& v# y# c& R" etesticular enlargement is not that evident in the
, X, ]. I5 l3 p' J6 @# L1 Abeginning of this process.1 In the absence of a neg-5 U7 B, O( R- i' |. _" V9 h _
ative initial history of androgen exposure, our
& }8 f/ _& _4 w5 J: `+ ubiggest concern was virilizing adrenal hyperplasia,( \# i& v M# n1 r4 G
either 21-hydroxylase deficiency or 11-β hydroxylase6 L( L q5 E' _6 w' K, G( T
deficiency. Those diagnoses were excluded by find-% N) b9 D( P) w; }, z* _
ing the normal level of adrenal steroids.
+ L( s$ m, ]2 k3 bThe diagnosis of exogenous androgens was strongly
3 q4 X5 d8 p7 Z7 W0 bsuspected in a follow-up visit after 4 months because8 q8 |) p" H& t* p w
the physical examination revealed the complete disap-
$ n0 I3 l/ t0 B, Dpearance of pubic hair, normal growth velocity, and& \ U* O" P: E( ^7 e% u1 N* U1 i6 W
decreased erections. The father admitted using a testos-0 N6 z) U8 [& H8 x: ]4 s
terone gel, which he concealed at first visit. He was
0 u6 G' }) ~( ]- o3 z9 Uusing it rather frequently, twice a day. The Physicians’4 h5 [1 l2 w3 B0 J& g8 K% Q5 V
Desk Reference, or package insert of this product, gel or
2 n2 i3 |- N" ~cream, cautions about dermal testosterone transfer to$ h# a+ S6 E9 |7 c2 r
unprotected females through direct skin exposure.# F- e* ^3 R9 x0 i) }: M( _8 k
Serum testosterone level was found to be 2 times the
( p2 \0 ~- x3 q2 i+ Sbaseline value in those females who were exposed to
! h8 ^! q5 c; ^even 15 minutes of direct skin contact with their male5 ~$ z" G- t+ p& y3 P1 u" ?
partners.6 However, when a shirt covered the applica-
% m7 O# E! } C! B) E4 h, ~2 Z1 mtion site, this testosterone transfer was prevented.
' w: t n: e/ `* H' X2 c E$ pOur patient’s testosterone level was 60 ng/mL,
2 ^+ L b4 K4 q: {& ]/ P2 T; ]which was clearly high. Some studies suggest that6 {5 q% e6 ?) B& y B
dermal conversion of testosterone to dihydrotestos-" q1 [& c* ?% X: b. v) e
terone, which is a more potent metabolite, is more
/ L2 \. l/ a7 ?- P! f2 Cactive in young children exposed to testosterone. `1 W7 c( N1 B
exogenously7; however, we did not measure a dihy-
$ _; U. X6 w5 E9 H' m1 qdrotestosterone level in our patient. In addition to
" H+ l# V. a1 I2 J7 W; o" w, X& Gvirilization, exposure to exogenous testosterone in5 {/ k8 j3 P, u5 W
children results in an increase in growth velocity and
8 ?# O) I" w) v3 W7 J& s. Q# L. }advanced bone age, as seen in our patient.
8 o6 y+ P. L& l+ `The long-term effect of androgen exposure during
' T7 k' B" I, O+ L7 h- }+ a) Nearly childhood on pubertal development and final
8 z0 o! K( E# f0 Q& ]2 Padult height are not fully known and always remain* l9 e% l$ c9 c' b1 Q" x: H
a concern. Children treated with short-term testos-, [- K' e% W! }4 {, g3 e
terone injection or topical androgen may exhibit some7 u; n7 Z4 S A: \( {
acceleration of the skeletal maturation; however, after
9 J( l3 [$ b0 B% Scessation of treatment, the rate of bone maturation
: Z8 ?. A C* K2 M# d; o4 ?: W. kdecelerates and gradually returns to normal.8,9
0 \! @" w$ E% Z$ M, fThere are conflicting reports and controversy
. C! j% M( ^8 Zover the effect of early androgen exposure on adult
* y9 S& H% T# g1 c: k2 i; Q4 \, Upenile length.10,11 Some reports suggest subnormal8 z* ~3 K+ w \2 s' Y; X# c) H
adult penile length, apparently because of downreg-
# S7 `8 ~( r& D+ Pulation of androgen receptor number.10,12 However,
1 B; M; ]! G" ^5 `; WSutherland et al13 did not find a correlation between5 e! F% J4 \' x# E
childhood testosterone exposure and reduced adult' }2 a8 X! r% a6 \2 `# }0 X! q
penile length in clinical studies.
7 c( q8 x( _, t. a/ @Nonetheless, we do not believe our patient is
+ ]4 I1 j: A: egoing to experience any of the untoward effects from
- F v% H. n4 V: \- H1 a9 ktestosterone exposure as mentioned earlier because6 l) h# a+ ^* t# a8 ^, U3 e
the exposure was not for a prolonged period of time./ r5 Q/ K' ]) c' M! N+ O
Although the bone age was advanced at the time of
9 @( }. b7 J1 W' V+ i' T1 [7 w/ Odiagnosis, the child had a normal growth velocity at
) V$ P. p: d# s2 Ithe follow-up visit. It is hoped that his final adult6 \" o0 z- w/ ~0 I% n# s7 F. w
height will not be affected.# m* ^- d6 R }
Although rarely reported, the widespread avail-/ F, A5 y! ?9 D4 s
ability of androgen products in our society may7 v; q8 I7 C- f9 W5 d# g
indeed cause more virilization in male or female
9 X. S6 T2 k* Q* a3 pchildren than one would realize. Exposure to andro-
, _" i1 T2 f. Q; I" u7 n1 lgen products must be considered and specific ques- W, u$ ]! ~: f" `
tioning about the use of a testosterone product or- }/ s; Q6 C- u9 P) ?6 K% H
gel should be asked of the family members during, b X( X8 }9 ]8 m, h2 h$ I
the evaluation of any children who present with vir-
3 E W! `# g A% H7 k3 c6 |3 [ilization or peripheral precocious puberty. The diag-
" P% a) I( X+ _nosis can be established by just a few tests and by
3 _" y+ w% ~! B* M3 I- g% Wappropriate history. The inability to obtain such a& H, x- S! A _8 \7 V
history, or failure to ask the specific questions, may
- {9 P, K% T( q* I/ Hresult in extensive, unnecessary, and expensive
% Z" W# u- I' ]7 winvestigation. The primary care physician should be
# B6 c G, |3 s' paware of this fact, because most of these children1 A' z3 G- [6 A, |3 ?4 C+ C
may initially present in their practice. The Physicians’! M# a2 W; h: X5 T" Q
Desk Reference and package insert should also put a
3 x8 k2 @, O8 f% l% V/ m6 k5 y3 `% |warning about the virilizing effect on a male or
7 U7 g) i3 A' A( r, p$ [female child who might come in contact with some-
/ m& U, p; X1 A' b2 Done using any of these products.$ H' p: e" }! [) p+ d7 O
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2002: 565-628.
1 {7 ~& k! \% Q( y2. Rivarola M, Belgorosky A, Mendilaharzu H, et al. Precocious
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# K9 V0 H- p' T1 S9 G4. Yu YM, Punyasavatsu N, Elder D, D’Ercole AJ. Sexual
3 D. {% o' c( C j7 Gdevelopment in a two-year-old boy induced by topical
9 y9 y* |3 i' ^: k: A' s# {exposure to testosterone. Pediatrics. 1999;104:e23.- c0 _2 `1 {0 K
5. Greulich WW, Pyle SI, eds. Radiographic Atlas of8 Z. w3 V8 T6 i- m
Skeletal Development of the Hand and Wrist. 2nd ed." F( z. w" A. o& N
Stanford, CA: Stanford University Press; 1959.( }; P8 Q6 Y# F) g9 E
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. m% n3 D3 G8 b7 F9 cUnimed Pharmaceutical Inc. Montvale, NJ: Medical3 H* N1 ^) [6 x0 w; i
Economics Company, Inc; 2004:3239-3241.
# k8 [. Y4 W! I: _6 D1 d+ S1 V8 a" S7. Klugo RC, Cerny JC. Response of micropenis to topical
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667-668.
. o5 R9 ?- N9 s* m( z8. Guthrie RD, Smith DW, Graham CB. Testosterone
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