The University of Tokyo and the National University of Singapore came first and second in the top-200 QS Asian University Rankings for life sciences and biomedicine, released on 13 May. Kyoto University in Japan was third, Seoul National University fourth and Peking University fifth. The same schools were top in natural sciences, with Kyoto second, Peking third and Seoul fifth.Ranking was based on academic reviews, numbers of papers and citations, teaching, employability and the number of international staff and students. QS, a London-based education-services company, began the World University Rankings in 2004 with the Times Higher Education Supplement.