Pan, Bo-Lin
Huang, Chih-Fang
Chuah, Seng-Kee
Chiang, Jui-Chin
Loke, Song-Seng
Article History
Received: 10 December 2017
Accepted: 17 April 2018
First Online: 24 April 2018
Ethics approval and consent to participate
: This study was approved by the Chang Gung Medical Foundation Institutional Review Board (IRB No.: 201701187B0). Since this is a retrospective study, a written consent is waived by an IRB and is deemed unnecessary.
: CSK is a member of the editorial board of this journal. All other authors declare that they have no competing interests.
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