Maqbool, S., Fatima, N., Siddiqi, K.M., Jamal, M., Baig, M.Z., Noor, S. and Hameed, S. 2019. FREQUENCY AND PATTERN OF RECURRENT APTHOUS ULCERS IN PATIENTS REPORTING TO ORAL MEDICINE AND DIAGNOSIS DEPARTMENT OF ISLAMABAD DENTAL HOSPITAL. Pakistan Oral & Dental Journal. 39, 1 (Apr. 2019), 30-33.