Phạm, Thị Huyền, et al. “THE MORPHOLOGICAL CHARACTERISTICS OF THE PRIMARY MANDIBULAR FIRST MOLARS AND THEIR ROOT CANALS ON CONE-BEAM COMPUTED TOMOGRAPHY IMAGES AT THE NATINONAL HOSPITAL OF ODONTO -STOMATOLOGY, HANOI”. Vietnam Medical Journal, vol. 561, no. 2, June 2026, doi:10.51298/vmj.v561i2.18270.