title: Nicotinamide deficiency after oral administration of penicillin.
authors.forename: P
authors.initials: P
authors.lastname: ELLINGER
authors.forename: F M
authors.initials: FM
authors.lastname: SHATTOCK
mesh_terms: D000284:Administration, Oral; D006801:Humans; D009525:Niacin / Q000172:deficiency*; D009536:Niacinamide; D010383:Pellagra; D010406:Penicillins / Q000494:pharmacology*
chemical_list: D010406:Penicillins; D009536:Niacinamide; D009525:Niacin