Impact of vaccination during pregnancy on infants' immune responses to vaccinations- definitions and statistical approaches. Issue 32 (30th July 2022) - Maertens, Kirsten; Leuridan, Elke; Munoz, Flor M.; Zimmermann, Petra; Curtis, Nigel; Halperin, Scott; Rots, Nynke; Barug, Daan; Holder, Beth; Sadarangani, Manish; Abu-Raya, Bahaa