Pishgahi, Mehdi, Rama Bozorgmehr, Masoud Rastgari, and Mohammad Amin Abbasi. 2016. “Effect of Nocturnal Oxygen Therapy on Electrocardiographic Changes Among Patients With Congestive Heart Failure”. International Journal of Cardiovascular Practice 1 (2), 33-35. https://doi.org/10.20286/ijcp-010204.