The U-shaped association between body mass index and mortality: relationship with weight gain in a Native American population

Hanson RL, McCance DR, Jacobsson LT, Narayan KM, Nelson RG, Pettitt DJ, Bennett PH, Knowler WC. The U-shaped association between body mass index and mortality: relationship with weight gain in a Native American population. J Clin Epidemiol. 1995; 48(7): 903-16.