December 2020 BMJ Allotey Clin manifestations, risk factors and maternal perinatal outcomes COVID 19 living sys review.Sept 2 2020 You are here Home Resource Library COVID-19 Clinical manifestations, risk factors, and maternal and perinatal outcomes of coronavirus disease 2019 in pregnancy BMJ Allotey Clin manifestations, risk factors and maternal perinatal outcomes COVID 19 living sys review.Sept 2 2020 Journal Article