title: Biological conversion of n-butyl penicillin into a chemotherapeutically active substance.
authors.forename: R H
authors.initials: RH
authors.lastname: BROH-KAHN
authors.forename: P K
authors.initials: PK
authors.lastname: SMITH
mesh_terms: D010406:Penicillins / Q000737:chemistry*
chemical_list: D010406:Penicillins; C006414:penicillin N
keywords: PENICILLIN/chemistry