Ovulation rates in a stair-step protocol with Letrozole vs clomiphene citrate in patients with polycystic ovarian syndrome

摘要

Flow diagrams for stair step protocols for ( ) Letrozole and ( ) Clomiphene Citrate for ovulation induction. Subsequent ultrasonogram was performed after “step up” in dosage until dominant follicle (18 mm) was seen or maximum dosage achieved per each treatment group