Shiroi Kyotō (白い巨塔, literally "The White Tower") is a 1965 novel by Toyoko Yamasaki. It has been adapted into a film in 1966 and then five times as a television series in 1967, 1978, 1990, 2003, and 2019. The 1966 film was entered into the 5th Moscow International Film Festival where it won a Silver Prize. Source: Wikipedia (en)