TY  - RPRT
TI  - Polyethylene tubes as a model for the root canal.
AU  - P C Makkes
AU  - S K van Velzen
AU  - P R Wesselink
AU  - P C de Greeve
PY  - 1977
DO  - 10.1016/0030-4220(77)90283-3
UR  - https://pubmed.ncbi.nlm.nih.gov/268581/
ID  - 268581
ER  -