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 economicsProfessor Chang is a Co-Direc体育导航实用网址tor of the Tumor Virology Laboratory at the University of Pittsburgh Cancer InstituteChinese-American Yuan Chang, 58, joined the list of physiology or medicine laureates, together with her husband Patrick Scom]Clarivate Analytics, formerly the Intellectual Property and Science business of Thomson Reuters, announced its 2017 Citation Laureates - scientists whose publications have been cited so often by their colleagues that they could be recipients of a Nobel Prize this year or in the futureTsien (1952-2016) got his Clarivate citation prize体育导航实用网址 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)Kaposi's sarcoma (KS) is the most common cancer in HIV-infected untreated individuals