Randomized Controlled Trial

Effects of patient-directed music intervention on anxiety and sedative exposure in critically ill patients receiving mechanical ventilatory support: a randomized clinical trial.

JAMA. 2013 Jun 12;309(22):2335-44.
Randomized Controlled Trial

Massage therapy for cardiac surgery patients--a randomized trial.

J. Thorac. Cardiovasc. Surg.. 2012 Dec 1;144(6):1453-9, 1459.e1.
Randomized Controlled Trial

Minimising preoperative anxiety with music for day surgery patients - a randomised clinical trial.

J Clin Nurs. 2012 Mar 1;21(5-6):620-5.