Japanese sleep scientist Masashi Yanagisawa and three Japanese researchers who developed a hemophilia treatment drug at Chugai Pharmaceutical Co. won Lasker Awards in medicine on Wednesday.Yanagisawa, who won the basic medical research award, is a professor at the University of Tsukuba. The other three, who received the clinical medical research award, are Kunihiro Hattori, Tomoyuki Igawa and Takehisa Kitazawa.The Lasker Awards often serve as pointers to potential Nobel Prize winners.Yanagisawa shared his award with Emmanuel Mignot, a professor at Stanford University School of Medicine, for…READ FULL ARTICLE