Chowdhury, T. G., Quader, S. A., Jannat, T. A., Chowdhury, S. S., Jahan, K. R., & Karim, F. A. A. (2015). Single visit apexification technique by root end barrier formation with MTA. Update Dental College Journal, 5(1), 21–25. https://doi.org/10.3329/updcj.v5i1.25824