Steph Smith; Jafer Al-Bohassan; Hassan Al-Moqhawi; Mohammad Alsuhayyih; Intisar Siddiqui; Khalid Almas. VERTICAL RADIOGRAPHIC ALVEOLAR BONE LOSS IN SMOKERS AND NON-SMOKERS WITH PERIODONTITIS: A PILOT STUDY. PODJ 2020, 39, 317-324.