Volume & Issue: Volume 30, Issue 3, November 2025 
Association between Serum Vitamin D Level and Anti-SARS-CoV-2 Spike IgG Antibody Titer: A Cross Sectional Study on Healthcare Workers in Sabzevar

Kazem Abbaszadeh-Goudarzi; Arghavan Zal; Mahdi Tadayon-far; Mohsen Heydari; ayoub rastegar; Saeideh Sadat Shobeiri; Amir Raoofi; Seyed Hojjatollah Hashemi Alizadeh; Paria Saffarzadeh; Mohammad Shafi Mojadadi


Study of methods of obtaining health information during pregnancy among pregnant mothers in Bojnourd city.

Sakineh Nazari; Zakieh Keshavarzi; Rezvan Rajabzadeh; Hamed Sharafi; mobina hossein fakhrabadi; حصاری Hesari