Lam, Rex Pui Kin http://orcid.org/0000-0001-5937-8989
Cheung, Arthur Chi Kin
Wai, Abraham Ka Chung
Wong, Ronald Tat Ming
Tse, Tak Sun
Article History
Received: 7 November 2018
Accepted: 14 December 2018
First Online: 1 January 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: The authors indicate that all procedures performed in this study involving human participants were in accordance with the ethical standards of the institutional or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. No animal subject was involved in this study.
: A written informed consent for publication was obtained from the patient. We declare that no work resembling the enclosed article has been published or is being submitted for publication elsewhere. We certify that we have each made a substantial contribution so as to qualify for authorship and that we have reviewed and approved the content of the article. No portion of the text has been copied from other material in the literature.