title: Systems of life. No. 163. Senior systems. 28.
authors.forename: A
authors.initials: A
authors.lastname: Roberts
mesh_terms: D000368:Aged; D000375:Aging; D006801:Humans; D008168:Lung / Q000254:growth & development* / Q000502:physiology / Q000503:physiopathology; D011018:Pneumonia, Pneumococcal / Q000451:nursing* / Q000628:therapy