Randomized Controlled Trial

The Misericordia Health Centre cataract comfort study.

Can J Ophthalmol. 2002 Apr 1;37(3):155-60.
Randomized Controlled Trial

Impact of nurse-initiated preoperative education on postoperative anxiety symptoms and complications after coronary artery bypass grafting.

J Cardiovasc Nurs. 2012 Jan 1;27(1):84-8.
Randomized Controlled Trial

Clown doctors as a treatment for preoperative anxiety in children: a randomized, prospective study.

Pediatrics. 2005 Oct 1;116(4):e563-7.