Chowdhury, M.M.H. et al. 2020. Role of Flexible Cystoscopy and Ultrasound Together in the Detection of Recurrent Superficial Bladder Tumors; A Comparison With Rigid Cystoscopy. Bangladesh Journal of Urology. 22, 1 (Nov. 2020), 41–46. DOI:https://doi.org/10.3329/bju.v22i1.50075.