Khan, T. A.; Irshad, F.; Hasan, F.; Channar, K. A.; Arain, B.; Anwar, K. Pattern of Occurrence and Severity of Oral Submucous Fibrosis Among Habitual Gutkha, Areca Nut and Pan Chewers: Oral Submucous Fibrosis Among Habitual Pan Chewers. PJHS 2024, 5, 176-182.