Reappearance of serum hepatitis B viral DNA in patients with hepatitis B surface antigen seroclearance. Issue 4 (13th June 2015) - Nakamura, Masato; Kanda, Tatsuo; Nakamoto, Shingo; Haga, Yuki; Sasaki, Reina; Jiang, Xia; Yasui, Shin; Arai, Makoto; Yokosuka, Osamu