TY  - RPRT
TI  - Crowns and extra-coronal restorations: materials selection.
AU  - R W Wassell
AU  - A W G Walls
AU  - J G Steele
PY  - 2002
DO  - 10.1038/sj.bdj.4801334
UR  - https://pubmed.ncbi.nlm.nih.gov/11931483/
ID  - 11931483
ER  -