The Effect of Different Doses of Ondansetron in Reducing Injection Pain of Etomidate: A Double-Blind Randomized Clinical Trial - Rahimi, Zahra; Masoudifar, Mehrdad; Nazemroaya, Behzad; Rahimi Varposhti, Mojtaba; Akhavanfar, Roozbeh (Archives of Anesthesiology and Critical Care, 2025)