Downregulation of β1 Integrins by Ebola Virus Glycoprotein: Implication for Virus Entry - Takada, Ayato; Watanabe, Shinji; Ito, Hiroshi; Okazaki, Katsunori; Kida, Hiroshi; Kawaoka, Yoshihiro (Virology (New York, N.Y.), 2000)