Dabadghao, V.S., Patil, R., Sharma, S.K. and Kakrani, A.L. 2016. A clinical study of cardiac rhythm disturbance in patients with chronic obstructive pulmonary disease using 24 hour Holter monitoring. International Journal of Research in Medical Sciences. 4, 3 (Dec. 2016), 702–705. DOI:https://doi.org/10.18203/2320-6012.ijrms20160491.