title: Response to letter regarding article, "Digital clubbing".
authors.affiliation: Division of Cardiology, Department of Internal Medicine, UT Southwestern Medical Center, Dallas, TX.
authors.forename: John D
authors.initials: JD
authors.lastname: Rutherford
mesh_terms: D005260:Female; D006801:Humans; D008175:Lung Neoplasms / Q000150:complications* / Q000175:diagnosis*; D008297:Male; D010005:Osteoarthropathy, Secondary Hypertrophic / Q000175:diagnosis* / Q000209:etiology*