TY  - RPRT
TI  - Methods for removing metal obstructions from the root canal.
AU  - M Hülsmann
PY  - 1993
DO  - 10.1111/j.1600-9657.1993.tb00278.x
UR  - https://pubmed.ncbi.nlm.nih.gov/8143573/
ID  - 8143573
ER  -