Funding for this research was provided by:
Ministry of Science and Technology, Taiwan (NSC101-3114-Y-002-003, MOST104-2321-B-002-058)
the Ministry of Health and Welfare (MOHW105-CDC-C-114-00103)
Received: 4 July 2017
Accepted: 17 January 2018
First Online: 1 February 2018
Ethics approval and consent to participate
: The Institutional Review Board of the National Taiwan University Hospital and its Hsinchu Branch approved the study (NTUH REC: 201,309,064 W; NTUH-HC REC: 105–023-E). Due to the retrospective design, inform consent was deemed unnecessary.
: Written informed consents of the four illustrated cases for publication were obtained.
: The authors declare that they have no competing interests.
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