title: The callus of crack cocaine.
authors.forename: R F
authors.initials: RF
authors.lastname: Larkin
mesh_terms: D000328:Adult; D002146:Bony Callus; D003042:Cocaine; D005260:Female; D006801:Humans; D019966:Substance-Related Disorders / Q000175:diagnosis*; D013933:Thumb
chemical_list: D003042:Cocaine