Emery et al, authors of the Research Letter “Overuse of Magnetic Resonance Imaging” published in the May 15, 2013, issue of JAMA Internal Medicine (2013;173[9]:823-825. doi:10.1001/jamainternmed.2013.3804), would like to acknowledge the assistance of Santanu Chakraborty, MD, and Marlise Peruzzo dos Santos, MD, MSc, who provided feedback on the ethics application, data collection forms, and scripts for interviewing patients at 1 of the 2 study sites.