Chinese-American Yuan Chang, 58, joined the list of physiology or medicine laureates, together with her husband Patrick SKaposi's sarcoma (KS) is the most common cancer in HIV-infected untreated individuals易倍体育emcTsien (1952-2016) got his Clarivate citation prize of chemistry in 2008, before he co-won the Nobel honor in chemistry at the same year, with Osamu Shimomura and Martin Chalfie, for the discovery and development of the green fluorescent protein (GFP)Professor Chang is a Co-Director of the Tumor Virology Laboratory at the University of Pittsburgh Cancer InstituteIn the last 15 years, 43 Citation Laureate易倍体育emcs have gone on to receive Nobel honors, so the prize has been seen as an indicator of the Nobel prizes, introduced in memory of Swedish chemist Alfred Nobel (1833-1896)Each year, analysts at Clarivate Analytics mine millions of citations in the Web of Science, an online subscription-based scientific citation indexing service, to identify top-tier researchers in physiology or medicine, physics, chemistry and economics