1. Trabecular carcinoma of the skin;Toker;Arch Dermatol,1972
2. Neuroendocrine (Merkel) cells of the skin: hyperplasias, dysplasias, and neoplasms;Gould;Lab Invest,1985
3. The Merkel cell;Moll;Hautarzt,1994
4. The hallmarks of cancer;Hanahan;Cell,2000
5. Cytotoxic T cells;Andersen;J Invest Dermatol,2006