The Paper Gown, an online source powered by ZocDoc that covers health and healthcare with a focus on patient experiences, interviews Mark P. Trolice, M.D., for his insights on freezing your eggs.

Last year, a research team lead by doctors at Brigham and Women’s Hospital introduced a counseling tool to help doctors loosely predict patients’ live-birth outcomes from frozen eggs. Mark Trolice, a reproductive endocrinologist and infertility specialist in Winter Haven, Florida, says these models are “the best guide we have to provide patients with a reasonable expectation based on the number of mature eggs [they’ve] frozen.”