Introduction of advanced maternal age based on mortality-specific severe morbidity.
Aaron D MasjediZachary S AndersonFay F PonShinya MatsuzakiRachel S MandelbaumJoseph G OuzounianKoji MatsuoPublished in: International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics (2024)