Letrozole, an aromatase inhibitor that blocks estrogen synthesis by inhibiting the final step of
the estrogen biosynthetic pathway, has been used in the applications of a wide range of …

Background There is no consensus on tests required to either diagnose unexplained
infertility or use for research inclusion criteria. This leads to heterogeneity and bias affecting …

Objective To provide evidence-based recommendations to practicing physicians and others
regarding the effectiveness and safety of therapies for unexplained infertility. Methods ASRM …

This text has been written as a practical guide, based on the author's experience over the
last 40 years of daily clinical practice and aiming to place the modern approach to the …

Importance Supplemental oxygen is commonly administered to pregnant women at the time
of delivery to prevent fetal hypoxia and acidemia. There is mixed evidence on the utility of …

BACKGROUND Intrauterine insemination with ovarian stimulation (IUI-OS) is a first-line
treatment for unexplained infertility. Gonadotrophins, letrozole and clomiphene citrate (CC) …

STUDY QUESTION What are the comparative pregnancy outcomes in women who receive
up to six consecutive cycles of ovulation induction with letrozole versus clomiphene citrate …

Letrozole is a targeted aromatase inhibitor which has primarily been used in post-
menopausal women with breast cancer. Recently, it has been utilized in infertile pre …

Multiple birth rates after fertility treatment are still high in many countries. Multiple births are
associated with increased rates of preterm birth and low birth weight babies, in turn …

Objective To identify whether the serum estradiol (E2) level on the day of human chorionic
gonadotropin (hCG) trigger or luteinizing hormone (LH) surge (hCG-LH) was associated …