1. keratoacanthoma;Baer,1963
2. keratoacanthoma;Ghadially,1971
3. tumors of the skin;Sanderson,1968
4. a technique of biopsy recommended for keratoacanthomas;Popkin;Arch. Dermatol.,1966
5. x-ray therapy of skin cancer: evaluation of a “standardized” method for treating basal-cell epitheliomas;Bart,1970