TY  - RPRT
TI  - Positioning device for endodontic working radiographs.
AU  - H L Harbert
AU  - S K Palombo
PY  - 1983
DO  - 10.1016/s0099-2399(83)80082-x
UR  - https://pubmed.ncbi.nlm.nih.gov/6590770/
ID  - 6590770
ER  -