“…Five patients were more than 10% underweight for age, sex, and height. 9. Patients varied in quality of history they could give in respect to definite knowl¬ edge of presence or absence of the two conditions in their families : (a) Sixteen patients (55%) could give definite infor¬ mation from more than three generations; (b) thirteen patients (45%) could give definite information from three or less generations.…”