17OHP	17 hydroxyprogesterone
AI	aromatase inhibitors
AR	androgen receptor
ARE	androgen response elements
ARKO	AR knock out animals
cAMP	cyclic adenosine monophosphate
CC	clomiphene citrate
CI	confidence interval
CREB	cAMP response element-binding protein
EGF	epithelial growth factor
FSH	follicle-stimulating hormone
FSHKO	FSH knock out animals
FSHR	FSH receptor
FSHRKO	FSHR knock out animals
GNRH	gonadotropin-releasing hormone
HCG	human chorionic gonadotropin
HYPO	hypospermatogenesis
INSL3	insulin-like factor 3
ITT	intratesticular testosterone
KS	Klinefelter syndrome
LH	luteinizing hormone
LHR	LH receptor
LuRKO	LHR knock out animals
MA	maturation arrest
MAP kinase	mitogen-activated protein kinase
Micro-TESE	microdissection testicular sperm extraction
NOA	nonobstructive azoospermia
OR	odds ratio
SCARKO	Sertoli cell AR knock out animals
SCO	Sertoli-cell only syndrome
SERM	selective estrogen receptors modulators
SRF	sperm retrieval failure
SRR	sperm retrieval rate
SSR	successful sperm retrieval
STAR	steroidogenic acute regulatory protein
T	testosterone