Kamrani, Farhad, et al. “Physiologic Indices of Patients Before, During and After Visit in Coronary Care Unit at Imam Khomeini Hospital in Ardebil”. Advances in Nursing & Midwifery, vol. 20, no. 70, Feb. 2011, pp. 18-22, doi:10.22037/anm.v20i70.2041.