Authors’ contributions
All authors reviewed the final manuscript and approved it. Dr. Manal Salah-Eldin Farmawy collected and analyzed the data and helped within the design of the study. Dr. Sherif M. S. Mowafy wrote the main manuscript text, prepared the tables and figures, and helped within the study design. Dr. Rehab Abd–Allah Wahdan registered, analyzed the data, and helped within study design.