Time interval between FSH priming and aspiration of immature human oocytes for in-vitro maturation: a prospective randomized study.

This prospective randomized controlled study was performed to examine the influence of coasting for 2 days versus 3 days following a fixed daily dose of FSH for 3 days. The outcome was 2-fold. In the first experiment (n = 50 cycles), the incidence of apoptosis in granulosa cells was compared.