Berat Cihan, Hasan, Dr . Erdal Ege, Dr . Oner Gulcan, Dr . Riza Turkoz, and Dr .Mustafa Pac. 2021. “Combined Therapy of Open Heart Surgery and Cervical Sympathectomy”. Annals of Medical Research 5 (2):0193-95. http://annalsmedres.org/index.php/aomr/article/view/2673.