Tan, C. K.
Tin, Z. L.
Arshad, M. K. M.
Loh, J. K. K.
Jafary, F. H.
Ho, H. H.
Ong, P. J. L.
Watson, T.
Article History
Received: 9 October 2017
Revised: 11 November 2017
Accepted: 4 December 2017
First Online: 16 January 2018
Compliance with ethical guidelines
:
: C.K. Tan, Z.L. Tin, M.K.M. Arshad, J.K.K. Loh, F.H. Jafary, H.H. Ho, P.J.L. Ong, and T. Watson declare that they have no competing interests.
: 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.