Authors’ contributions
Ghodratollah Shakerinejad contributed to the study design, performing statistical analysis, Zahra Baji performing statistical analysis and revising the manuscript. Masoumeh Tehrani contributed to data collection, study design, Farzaneh Jarvandi contributed to performing statistical analyses. Maria Cheraghi manuscript drafting and revising. Nasser Hatamzadeh contributed to the study design and revising the manuscript. All authors read and approved the final manuscript.