| Literature DB >> 14069438 |
Abstract
Entities:
Keywords: AGING; ELECTROCARDIOGRAPHY; EXERTION; GERIATRICS; MIDDLE AGE; REST
Mesh:
Year: 1963 PMID: 14069438 DOI: 10.1111/j.0954-6820.1963.tb07948.x
Source DB: PubMed Journal: Acta Med Scand ISSN: 0001-6101