Theerakulpisut, Daris http://orcid.org/0000-0002-1338-511X
Raruenrom, Yutapong
Wongsurawat, Nantaporn
Somboonporn, Charoonsak
Article History
Received: 8 May 2018
Revised: 12 June 2018
Accepted: 28 June 2018
First Online: 16 July 2018
Compliance with Ethical Standards
:
: Daris Theerakulpisut, Yutapong Raruenrom, Nantaporn Wongsurawat, and Charoonsak Somboonporn declare that they have no conflict of interest. No funding was received for conduction of this study.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: The institutional review board of our institute approved this retrospective study, and the requirement to obtain informed consent was waived.