| Literature DB >> 33722794 |
Emily R Smith1, Valerie J Flaherman2,3.
Abstract
Entities:
Keywords: COVID-19; cohort study; epidemiology; maternal health; systematic review
Year: 2021 PMID: 33722794 PMCID: PMC7970213 DOI: 10.1136/bmjgh-2021-004940
Source DB: PubMed Journal: BMJ Glob Health ISSN: 2059-7908