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2. Carcinoma of the oesophagus with keratosis palmaris et plantaris (Tyosis), A study of two families;Howel-Evans;Q J Med,1958
3. Mal de Meleda, Review of the literature and report of four cases;Niles;Arch Dermatol,1939
4. The Papillon-Lefevre syndrome, Keratosis palmoplantaris with periodontopathy;Haneke;Hum Genet,1979
5. Localized epidermolytic hyperkeratosis: A rare form of keratoderma of the palms and soles;Klaus;Arch Dermatol,1970