COVID-19 and perinatal intimate partner violence: a cross-sectional survey of pregnant and postpartum individuals in the early stages of the COVID-19 pandemic oleh Katherine A Muldoon, Kari Sampsel, Mark C Walker, Shi Wu Wen, Darine El-Chaâr, Daniel J Corsi, Malia S Q Murphy, Kathryn M Denize, Carlie Boisvert, Olivia Frank, Alysha L J Harvey, Ruth Rennicks White, Meagan Ann O'Hare-Gordon