Glyn Elwyn is a professor and physician-researcher at The Dartmouth Institute for Health Policy and Clinical Practice, Dartmouth College, USA, where he directs the Patient Engagement Research Program. He also leads The Preference Laboratory, an international interdisciplinary team at The Dartmouth Institute, examining the implementation of shared decision making into clinical settings, using tools and measures such as collaboRATE, a patient experience measure of shared decision making, and Observer OPTION, a process measure for shared decision making for use on recorded data.