Matsumoto, Kazuhiro http://orcid.org/0000-0001-9222-0999
Niwa, Naoya
Hagiwara, Masayuki
Kosaka, Takeo
Tanaka, Nobuyuki
Takeda, Toshikazu
Morita, Shinya
Mizuno, Ryuichi
Shinojima, Toshiaki
Hara, Satoshi
Asanuma, Hiroshi
Oya, Mototsugu
Article History
Received: 6 April 2019
Accepted: 20 September 2019
First Online: 26 September 2019
Conflict of interest
: The authors declare that they have no conflict to declare.
: This retrospective study was conducted after receiving approval from the institutional review board.