Welcome to IFMSS The International Fetal Medicine and Surgery Society (IFMSS) started in 1982, was formalized in 1983 and meets on an annual basis.  Venues alternate between North America and other sites around the world.  Attendees include pediatric surgeons, maternal-fetal medicine specialists, obstetrician-gynecologists, geneticists and ethicists.  The official organ of the IFMSS is Fetal Diagnosis and Therapy, published by Karger, Inc.