The following other authors from the COMMAND VTE Registry Investigators participated the study: Syunsuke Saga, MDa; Kazushige Kadota, MDb; Toru Takase, MDc; Seiichi Hiramori, MDd; Kitae Kim, MDe; Maki Oi, MDf; Masaharu Akao, MDg; Yohei Kobayashi, MDh; Mamoru Toyofuku, MDi; Takao Kato, MDj; Koh Ono, MDj.
