TY  - RPRT
TI  - A two-rooted maxillary central incisor.
AU  - B Heling
PY  - 1977
DO  - 10.1016/0030-4220(77)90124-4
UR  - https://pubmed.ncbi.nlm.nih.gov/265496/
ID  - 265496
ER  -