TY  - RPRT
TI  - Mandibular premolar with three root canals--two case reports.
AU  - K Chan
AU  - S C Yew
AU  - S Y Chao
PY  - 1992
DO  - 10.1111/j.1365-2591.1992.tb01160.x
UR  - https://pubmed.ncbi.nlm.nih.gov/1291523/
ID  - 1291523
ER  -