Andrew Melissa K, McElhaney Janet E
Department of Medicine (Geriatrics) and Canadian Center for Vaccinology, Dalhousie University, Halifax, B3H 2E1, NS, Canada.
Health Sciences North Research Institute, Sudbury, ON, Canada.
Lancet. 2021 Dec 19;396(10267):1942-1944. doi: 10.1016/S0140-6736(20)32481-8. Epub 2020 Nov 19.