Soha BASHA; Hazar AL-HARBI; Sahar EL-REFAI. An Experimental Study on Histological Evaluation of the effect of Pure Nicotine and Pentoxifylline Gel on Oral Ulcers. New Frontiers in Medicine and Medical Research Vol. 12, [S. l.], p. 168–176, 2021. DOI: 10.9734/bpi/nfmmr/v12/4076F. Disponível em: https://stm.bookpi.org/NFMMR-V12/article/view/3676. Acesso em: 3 jun. 2026.