Methylene Blue as a Diagnostic Aid in The Early Detection and Screening of Oral Cancers and Precancerous Lesion. - Akmal, Nimra; Ibrahim, Muhammad Wasim; Malik, Numrah Shakeel; Aman, Nadia; Hanif, Maidah; Geelani, Rabia Rahat (JPMI: Journal of Postgraduate Medical Institute, 2025)