Titlebook: Integer Programming and Combinatorial Optimization; 4th International IP Egon Balas,Jens Clausen Conference proceedings 1995 Springer-Verla

火花

men and women are similar, adolescent girls have a 60% higher prevalence than boys (Dabelea et al. JAMA. 2014;311(17):1778–86; Group TS et al. N Engl J Med. 2012;366(24):2247–56). Potential explanations for the sex difference in youth include the earlier onset of puberty in girls vs. boys and the l