Post-approval safety studies of vaccines in pregnancy: available regulatory guidance and next steps towards the more efficient generation of safety evidence. - MacDonald, Sarah C.; Guignard, Adrienne P.; Munoz, Flor M.; Dareng, Eileen O.; Davis, Kourtney J.; Machado, Marina Amaral de Avila; Shmuel, Shahar; Taddei, Laura; Marcelon, Lydie (Frontiers in Drug Safety & Regulation, 2025)