Halim, A., A. ., M. Sharma, J. Jeenger, V. Singroha, and V. Singroha. “Relationship Between Serum Vitamin B12 Level, Sociodemographic Variables, and Medical Comorbidity in Psychiatric in-Patients”. International Journal of Research in Medical Sciences, vol. 10, no. 2, Jan. 2022, pp. 419-24, doi:10.18203/2320-6012.ijrms20220285.