TY  - RPRT
TI  - Variations in dental calculi composition and structure.
AU  - J L Rabinowitz
AU  - E Korostoff
AU  - D W Cohen
AU  - S Orlean
DO  - 10.1177/00220345690480062101
UR  - https://pubmed.ncbi.nlm.nih.gov/5262052/
ID  - 5262052
ER  -