Table tennis for patients with Parkinson’s disease: A single-center, prospective pilot study oleh Kenichi Inoue, Shinsuke Fujioka, Koichi Nagaki, Midori Suenaga, Kazuki Kimura, Yukiko Yonekura, Yoshiki Yamaguchi, Kosuke Kitano, Ritsuko Imamura, Yoshinari Uehara, Hitoshi Kikuchi, Yoichi Matsunaga, Yoshio Tsuboi