title: Penicillin resistance of nonhemolytic streptococci from rheumatic children receiving prophylactic penicillin.
authors.forename: E
authors.initials: E
authors.lastname: KRUMWIEDE
mesh_terms: D002648:Child; D006801:Humans; D010403:Penicillin Resistance; D010406:Penicillins; D012213:Rheumatic Fever; D013290:Streptococcal Infections; D013291:Streptococcus
chemical_list: D010406:Penicillins