Hung, Chao-Ming
Li, Ying-Chun
Chen, Han-Jung
Lu, Kang
Liang, Cheng-Loong
Liliang, Po-Chou
Tsai, Yu-Duan
Wang, Kuo-Wei
Article History
Received: 25 July 2017
Accepted: 29 January 2018
First Online: 7 February 2018
Ethics approval and consent to participate
: The study was approved by the National Health Research Institutes, Taiwan. The database information is anonymized.
: The manuscript did not contain any individual person’s data in any form (including individual details, images or videos).
: The authors declare that they have no competing interests.
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