Professor Stephen PorterWALEED ABDULLAH ALAMOUDI2022-05-292022-05-2934508https://drepo.sdl.edu.sa/handle/20.500.14154/49278Validity and Reliability of Patient Reported Outcome Measures (PROMs) Related to the Psychological Impact of Chronic Ulcerating Oral Mucosal Disease: Recurrent Aphthous StomatitisThesis