Z. Shirdel, I. Behzad, B. Manaf, and M. Saheb, “The interactive effect of preoperative consultation and operating room admission by a counselor on anxiety level and vital signs in patients undergoing Coronary Artery Bypass Grafting surgery. A clinical trial study”, Invest. Educ. Enferm., vol. 38, no. 2, Jul. 2020.