Halim, Abdul, Amandeep ., Manu Sharma, Jitendra Jeenger, Vikas Singroha, and Vikas Singroha. 2022. “Relationship Between Serum Vitamin B12 Level, Sociodemographic Variables, and Medical Comorbidity in Psychiatric in-Patients”. International Journal of Research in Medical Sciences 10 (2):419-24. https://doi.org/10.18203/2320-6012.ijrms20220285.