title: Clubbing of the digits as a primary disease.
authors.forename: M C
authors.initials: MC
authors.lastname: MCCORD
authors.forename: H L
authors.initials: HL
authors.lastname: HYMAN
mesh_terms: D005121:Extremities; D005385:Fingers / Q000002:abnormalities*; D006801:Humans; D010005:Osteoarthropathy, Secondary Hypertrophic; D014034:Toes / Q000002:abnormalities*