title: [Porokeratosis Mibelli on the extensor surface of the first metacarpophalangeal joint].
authors.forename: W
authors.initials: W
authors.lastname: KNIERER
mesh_terms: D006801:Humans; D007642:Keratosis; D055623:Keratosis, Actinic; D008662:Metacarpophalangeal Joint; D017499:Porokeratosis