Cho, S. W., and H. J. Choi. “Effect of Music on Reducing Anxiety for Patients Undergoing Transrectal Ultrasound-Guided Prostate Biopsies: Randomized Prospective Trial”. Urology Journal, vol. 13, no. 2, Apr. 2016, pp. 2612-4, doi:10.22037/uj.v13i2.3187.