RT Journal Article SR Electronic T1 Opinion: It’s time to consider a COVID-19 vaccine mandate JF The Nation's Health JO Nations Health FD American Public Health Association SP 2 OP 2 VO 51 IS 8 A1 José Ramón Fernández-Peña YR 2021 UL http://www.thenationshealth.org/content/51/8/2.2.abstract AB