In a recent editorial, Dr Williams1 challenges the biologic validity of the concept of race, usually defined in North America and Europe in terms of skin color. He goes on to suggest that dermatologist investigators describe the subjects of their research in terms of "self-nominated ethnic group" rather than race or arbitrary classifications such as Asian/Pacific Islander.
Carter EL. Race vs Ethnicity in Dermatology. Arch Dermatol. 2003;139(4):539-540. doi:10.1001/archderm.139.4.539-a