title: A comparison of pain induced by procaine and benzyl penicillin.
authors.forename: M
authors.initials: M
authors.lastname: Harari
authors.forename: A
authors.initials: A
authors.lastname: Mathias
authors.forename: J
authors.initials: J
authors.lastname: Sembo
mesh_terms: D000293:Adolescent; D000328:Adult; D004334:Drug Administration Schedule; D006801:Humans; D007273:Injections, Intramuscular; D010146:Pain / Q000139:chemically induced*; D010400:Penicillin G / Q000009:adverse effects*; D010402:Penicillin G Procaine / Q000009:adverse effects*
chemical_list: D010402:Penicillin G Procaine; D010400:Penicillin G