1. Lichen spinulosus following intradermal apphcation of diphtheria toxin;Becker;Arch Dermatol Syph,1930
2. Diseases of the skin;Ormsby,1954
3. Lichen pilaris, seu spinuoous;Adamson;Br J Dermatol,1905
4. Textbook of dermatology;Rook,1986
5. Dermatology;Moschella,1985