@misc{indiciaec5afbfa8d433, title = {Crowns and extra-coronal restorations: materials selection.}, author = {R W Wassell and A W G Walls and J G Steele}, year = {2002}, doi = {10.1038/sj.bdj.4801334}, url = {https://pubmed.ncbi.nlm.nih.gov/11931483/}, note = {Source identifier: 11931483} }