Shih, Tzu-Chien
Chang, Hsiao-Ting
Lin, Ming-Hwai
Chen, Chun-Ku
Chen, Tzeng-Ji
Hwang, Shinn-Jang
Article History
Received: 8 August 2017
Accepted: 11 January 2018
First Online: 24 January 2018
Ethics approval and consent to participate
: The institute review board of Taipei Veterans General Hospital in Taiwan approved this study and deemed that informed consent should be waived owing to the retrospective nature of the study.
: Not applicable.
: The authors declare that they have no competing interests.
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