The Global Leaders

1 Mayo Clinic

he largest—and original—Mayo Clinic has been in Rochester, Minnesota, since 1889. Every year, approximately 1.3 million people from 138 countries come to the Mayo Clinic’s 19 hospitals in five states for their specialized team approach. With over 4,800 staff physicians and scientists and over 4,000 full-time research personnel, it is committed to finding answers to the toughest medical cases. Always on the cutting edge, the clinic recently announced several new cancer initiatives. In a counterintuitive move, researchers in Rochester found that by encouraging cancers to mutate, the cancers can be targeted by immunotherapy, and clinical trials for pediatric patients with brain tumors will put this into practice shortly. It also recently announced