Risk factors for oxygen requirement in hospitalized pregnant and postpartum women with COVID-19 Fernanda Spadotto Baptista; Cristiane Freitas Paganoti; Ursula Trovato Gomez; Stela Verzinhasse Peres; Luiz Marcelo Malbouisson; Maria de Lourdes Brizot; Rossana Pulcineli Vieira Francisco;

Impact of Gamma COVID-19 variant on the prognosis of hospitalized pregnant and postpartum women with cardiovascular disease Carolina Burgarelli Testa; Luciana Graziela de Godoi; Nátaly Adriana Jiménez Monroy; Maria Rita de Figueiredo Lemos Bortolotto; Agatha Sacramento Rodrigues; Rossana Pulcineli Vieira Francisco;

Maternal and fetal/neonatal outcomes of pregnancies complicated by pulmonary hypertension: a retrospective study of 154 patients Chengtian Lv; Lichan Wu; Guangyuan Liao; Yuwen Huang; Jingyi Chen; Shuyi Jiang; Dunjin Chen; Yuanmei Gao;