usa O. Andreas Halvorsen George C. Halvorson Junichi Hamada Ali Hamadé Jurgen Hambrecht Andrew Hamilton Mohamed Bin Dhaen Al Hamli Han Seung-Soo Harish Hande Paul Hanratty Tim Hanstad Hao Jiming Donald R. Harkleroad Poppy Harlow Fredric W. Harman Chairman Chief Medical Correspondent Editor-in-Chief Ch