title: The effect of prolonged use of penicillin tooth powder on the penicillin resistance of oral microorganisms.
authors.forename: H
authors.initials: H
authors.lastname: WELCH
authors.forename: W A
authors.initials: WA
authors.lastname: RANDALL
authors.forename: L E
authors.initials: LE
authors.lastname: PUTNAM
authors.forename: F D
authors.initials: FD
authors.lastname: HENDRICKS
mesh_terms: D001419:Bacteria; D006801:Humans; D010403:Penicillin Resistance; D010406:Penicillins / Q000008:administration & dosage*; D011208:Powders
chemical_list: D010406:Penicillins; D011208:Powders
keywords: BACTERIA; PENICILLIN/administration