AUTHOR CONTRIBUTIONS

APM: Concept/design, Data analysis/interpretation, Critical revision of article, Approval of article;
CNNG: Concept/design, Data collection, Data analysis/interpretation, Drafting article, Critical revision of article, Approval of article;
AJA: Data collection, data analysis/interpretation, critical revision of article, approval of article;
GSW: Statistics, drafting article, critical revision of article, Approval of article;
LV: Data collection, data analysis/interpretation, critical revision of article, Approval of article,
DNT: Statistics, drafting article, critical revision of article, Approval of article;
JB: Critical revision of article, Approval of article,
SK: Concept/design, Critical revision of article, Approval of article.