COVID-19 vaccines confer protection in hospitalized pregnant and postpartum women with severe COVID-19: a retrospective cohort study - Paganoti, Cristiane de Freitas; Costa, Rafaela Alkmin da; Papageorghiou, Aris T.; Costa, Fabrício da Silva; Quintana, Silvana Maria; Godoi, Luciana Graziela de; Monroy, Nátaly Adriana Jiménez; Rodrigues, Agatha Sacramento; Francisco, Rossana Pulcineli Vieira (Vaccines, 2022)