Islam, Mohammad Obaidul, Md Zakaria Sarker, Muddassir Mahmud, Mesbah Uddin Ahmed, Ashequr Rahman Bhuiyan, and A Allam Chowdhury. 2015. “Comparative Study of Ultrasound Guided FNAC and Conventional FNAC in the Diagnosis of Parotid Tumour”. Bangladesh Journal of Otorhinolaryngology 21 (1):5-16. https://doi.org/10.3329/bjo.v21i1.24290.