Ayuk, S. M.
Houreld, N. N.
Abrahamse, H.
Funding for this research was provided by:
South African Research Chairs Initiative of the Department of Science and Technology and National Research Foundation of South Africa (98337)
University of Johannesburg
African Laser Centre, Council for Scientific and Industrial Research
CSIR National Laser Centre
Article History
Received: 21 February 2017
Accepted: 26 December 2017
First Online: 8 March 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: This study received ethical approval from the University of Johannesburg, Faculty of Health Sciences Academic Ethics Committee (AEC01-13-2014).