Measuring health-related benefit and quality of care in oral and maxillofacial surgery: British Association of Oral and Maxillofacial Surgeons Outcomes Project. Issue 6 (July 2018) - McMahon, J.; Puglia, F.; Martin, I.; Mitchell, D.; Dover, S.; Bentley, R.; Parmar, S.; Smith, A.T.; Kerawala, C.; Holland, I.