Experiments of letrozole in animal types have shown that it causes congenital anomalies if applied in the course of pregnancy, but there have been no experiments of this drug in pregnant Gals.11, thirteen In 1990, the NICHD led an NIH conference on PCOS to make a working definition of this https://dralpersismanoglu.com/en/tag/can-you-have-kids-with-pcos/