TY  - RPRT
TI  - Specialization in endodontics.
AU  - D M Martin
PY  - 1991
DO  - 10.1111/j.1365-2591.1991.tb00133.x
UR  - https://pubmed.ncbi.nlm.nih.gov/1917102/
ID  - 1917102
ER  -