title: Rectal colonization by group B beta-hemolytic streptococci in a geriatric population.
mesh_terms: D000328:Adult; D000368:Aged; D006801:Humans; D009735:Nursing Homes; D012007:Rectum / Q000382:microbiology*; D013292:Streptococcus agalactiae / Q000254:growth & development* / Q000302:isolation & purification