Chowdhury, Nurul Karim, et al. “Delay in the Diagnosis of Oral Malignancy : Study on Responsible Factors”. Chattagram Maa-O-Shishu Hospital Medical College Journal, vol. 19, no. 2, Nov. 2020, pp. 37-40, doi:10.3329/cmoshmcj.v19i2.50040.