TY - RPRT TI - Virulent Streptococcus pyogenes: outbreak and spread within a geriatric unit. AU - R I Reid AU - R S Briggs AU - D V Seal AU - A D Pearson PY - 1983 DO - 10.1016/s0163-4453(83)93549-1 UR - https://pubmed.ncbi.nlm.nih.gov/6350476/ ID - 6350476 ER -