TY  - RPRT
TI  - External root resorption: an experimental radiographic evaluation.
AU  - L Chapnick
PY  - 1989
DO  - 10.1016/0030-4220(89)90276-4
UR  - https://pubmed.ncbi.nlm.nih.gov/2717155/
ID  - 2717155
ER  -