TY  - RPRT
TI  - Directly placed esthetic restorative materials--the continuum.
AU  - J O Burgess
AU  - B K Norling
AU  - H R Rawls
AU  - J L Ong
PY  - 1996
UR  - https://pubmed.ncbi.nlm.nih.gov/9051949/
ID  - 9051949
ER  -