Authors’ contributions
Shereen A. Baioumy,
Shereen Mahmoud Ibrahim, Aya
Elgendy and Shaimaa Fouad designed
the study. Shereen A. Baioumy and Shaimaa Fouad Fouad shared in sample
collection. Shereen Mahmoud Ibrahim and Aya Elgendy shared in sample
collection and did the statistical analysis. Shaimaa Hani Fouad wrote
the draft. Shereen A. Baioumy and Aya Elgendy performed the critical
review of the manuscript. All authors reviewed and approved the final
version. All authors read and approved the final manuscript.