R Friedman. Show Affiliations »
Abstract
Entities: Species
Mesh: See more » AgedAged, 80 and overBacterial VaccinesHumansImmunocompetenceMiddle AgedNursing HomesStreptococcus pneumoniae/immunologyVaccination
Substances: See more » Bacterial Vaccines
Year: 1991 PMID: 2070308 PMCID: PMC1335721
Source DB: PubMed Journal: CMAJ ISSN: 0820-3946 Impact factor: 8.262