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Daisuke Usuda, Kento Takeshima, Ryusho Sangen, Kisuke Nakamura, Kei Hayashi, Hideyuki Okamura, Yasuhiro Kawai, Yuji Kasamaki, Yoshitsugu Iinuma, Hitoshi Saito, Tsugiyasu Kanda, Sachio Urashima 
World J Clin Cases 6(12):548-553. Published online Oct 26, 2018. doi: 10.12998/wjcc.v6.i12.548