In a randomized study comparing purified urinary FSH with recombinant FSH for IVF/intracytoplasmic sperm injection in patients with polycystic ovary syndrome, there was no significant difference between the mean total dose of FSH used, duration of stimulation, number of retrieved oocytes, number of mature oocytes, number of embryos transferred, or the ongoing pregnancy rate between the two grou…
The following study was conducted to determine which FSH, recombinant or urinary, works better in older women.