title: Letter by De Mattia et al regarding article, "Digital clubbing".
authors.affiliation: Department of Cardiology ARC, Azienda Ospedali Riuniti del Pordenonese, Pordenone, Italy.
authors.forename: Luca
authors.initials: L
authors.lastname: De Mattia
authors.forename: Gian Luigi
authors.initials: GL
authors.lastname: Rellini
authors.forename: Gian Luigi
authors.initials: GL
authors.lastname: Nicolosi
mesh_terms: D005260:Female; D006801:Humans; D008175:Lung Neoplasms / Q000150:complications* / Q000175:diagnosis*; D008297:Male; D010005:Osteoarthropathy, Secondary Hypertrophic / Q000175:diagnosis* / Q000209:etiology*