1. Howel-Evans W, McConnell RB, Clarke CA, Sheppard PM. Carcinoma of the oesophagus with keratosis palmaris et plantaris (Tylosis). Quart J Med. 1958;27:413–29.
2. Ellis A, Field JK, Field AE, Friedmann PS, Fryer A, Howard P, et al. Tylosis associated with carcinoma of the oesophagus and oral leukoplakia in a large Liverpool family—a review of six generations. Eur J Cancer B Oral Oncol. 1994;30B:102–12.
3. Harper PS, Harper RM, Howel-Evans AW. Carcinoma of the oesophagus with tylosis. Quart J Med. 1970;39:317–33.
4. Hennies HC, Hagedorn M, Reis A. Palmoplantar keratoderma in association with carcinoma of the esophagus maps to chromosome 17q distal to the keratin gene cluster. Genomics. 1995;29:537–40.
5. Stevens HP, Kelsell DP, Bryant SP, Bishop DT, Spurr NK, Weissenbach J, et al. Linkage of an American pedigree with palmoplantar keratoderma and malignancy(palmoplantar ectodermal dysplasia type III) to 17q24. Literature survey and proposed updated classification of the keratodermas. Arch. Dermatol. 1996;132:640–51.