[Genetic determinants in anorexia nervosa. Results of twin studies].

Contrary to many widely discussed theories of anorexia nervosa the conclusive human genetic results of research with twins have been almost totally ignored and individual casuistry has often been misinterpreted. The two twin-series studies at hand (Crisp et al./London and the author)--totally independent of each other and compiled during the same time period--speak unmistakably for a great genetic determination and genesis of anorexia nervosa. The AN-twin pairs compiled by the author over a period of 30 years are described here.