TY  - RPRT
TI  - Drying periapical films: simplified chairside technique.
AU  - D G Ehrich
PY  - 1993
DO  - 10.1016/s0099-2399(06)81041-1
UR  - https://pubmed.ncbi.nlm.nih.gov/8289028/
ID  - 8289028
ER  -