This work was carried out in collaboration between all authors. Author SAMA designed the study, performed the laboratory work, managed the literature searches, managed the analyses of the results and wrote the first draft of the manuscript. Author ZZA wrote the protocol, participated in the designing of the study, participated in the performing the laboratory work and reviewed of the manuscript. Author HAY participated in the designing of the study, recruited the cases, performed the statistical analysis and reviewed of the manuscript. Author AMA managed the literature searches, recruited the cases, shared in analyses of the results and reviewed of the manuscript. All authors read and approved the final manuscript.