Sequential changes in the non-coding control region sequences of JC polyomaviruses from the cerebrospinal fluid of patients with progressive multifocal leukoencephalopathy

Kazuo Nakamichi, Shuji Kishida, Kozue Tanaka, Akihiko Suganuma, Yasuteru Sano, Hironori Sano, Takashi Kanda, Norihisa Maeda, Jun ichi Kira, Ai Itoh, Natsuko Kato, Hidekazu Tomimoto, Ichiro Kurane, Chang Kweng Lim, Hidehiro Mizusawa, Masayuki Saijo