TY  - RPRT
TI  - Extracoronal amalgam restorations utilizing available tooth structure for retention.
AU  - R F Birtcil
AU  - E A Venton
PY  - 1976
DO  - 10.1016/0022-3913(76)90276-6
UR  - https://pubmed.ncbi.nlm.nih.gov/1061811/
ID  - 1061811
ER  -