Professor of obstetrics and gynecology at the Stanford University Medical Center.

First non-M.D. President of the Pacific Coast Reproductive Society.

Developed a culture medium for embryo culture to the blastocyst stage, which improved pregnancy rates, implantation rates and reduced the risks of multiple gestation in IVF.

Published over 90 peer-reviewed publications and is the author of over 170 abstracts and 14 book chapters.