Azoospermia affects 1% of men, and it can be due to:(i) hypothalamic-pituitary
dysfunction,(ii) primary quantitative spermatogenic disturbances,(iii) urogenital duct …

BACKGROUND Infertility and pregnancy loss are longstanding problems. Successful
fertilization and high-quality embryos are prerequisites for an ongoing pregnancy. Studies …

STUDY QUESTION How should recurrent implantation failure (RIF) in patients undergoing
ART be defined and managed? SUMMARY ANSWER This is the first ESHRE good practice …

Approximately 7% of men suffer from fertility problems, the etiology of which are ascribable
to a number of factors acting at pretesticular, posttesticular, or testicular levels. About 20% of …

Pregnancy is established during the periconceptional period as a continuum beginning with
blastocyst attachment to the endometrial epithelial surface followed by embryo invasion and …

Non-Obstructive Azoospermia (NOA) affects about 1% of men in the general population and
is characterized by clinical heterogeneity implying the involvement of several different …

STUDY QUESTION Is there an association between patients' reproductive history and the
mean euploidy rates per biopsied blastocysts (m-ER) or the live birth rates (LBRs) per first …

Importance Although the clinical utility of genome sequencing for critically ill children is well
recognized, its utility for proactive pediatric screening is not well explored. Objective To …

BACKGROUND As in other domains of medicine, high-throughput sequencing methods
have led to the identification of an ever-increasing number of gene variants in the fields of …

Gonadotropins are glycoprotein sex hormones regulating development and reproduction
and bind to specific G protein–coupled receptors expressed in the gonads. Their effects on …