Tanmi, F. H., Hossain, M., Howlader, M. M. R., Abdin, M. J., Alam, M. S., & Moral, M. A. A. (2017). Esthetic correction of calcified tooth discoloration by walking bleach technique. Bangabandhu Sheikh Mujib Medical University Journal, 10(4), 234–239. https://doi.org/10.3329/bsmmuj.v10i4.34285