2. Cientificos David Heber, M.D., Ph.D., F.A.C.P., F.A.C.N. Chairman, Scientific & Medical Advisory Boards Luigi Gratton, M.D., M.P.H. Vice President, Medical Affairs and Education Mario Z. Rosenberg, M.D. Medical Advisory Board Louis Ignarro, Ph.D. Scientific Advisory Board † The Nobel Prize is a registered trademark of the Nobel Foundation.