Maleeha Tahir Butt, Amber Shami, Waqas Qarshi, Raheela Shaheen, Zarrin Khaliq Chaudari, Mehak Shafiq. “Vitamin D Deficiency As Etiological Factor for Breast Cancer”. Pakistan Journal of Medical & Health Sciences, vol. 16, no. 08, Oct. 2022, p. 836, doi:10.53350/pjmhs22168836.