Nawal, C.L., Chejara, R.S., Panwar, A., Agrawal, M.K., Singh, A. and Meena, P.D. 2018. The relation of serum GGT level in patients with non valvular atrial fibrillation and normal sinus rhythm. International Journal of Research in Medical Sciences. 6, 4 (Mar. 2018), 1174–1178. DOI:https://doi.org/10.18203/2320-6012.ijrms20181017.