AUTHOR CONTRIBUTIONS
G. Akkus, V. Izol and F. Ok, data analysis/interpretation, critical
revision of article, approval of article; M. Evran, M. Inceman and S.
Erdogan, data analysis/interpretation, manuscript writing/editing; H. M.
Kaplan, data extraction, statistics, data analysis/interpretation,
manuscript writing/editing; M. Sert and T. Tetiker, concept/design, data
analysis/interpretation, manuscript writing/editing.