TY  - RPRT
TI  - Geriatric dentistry.
AU  - G B Beard
AU  - D M Beard
PY  - 1989
DO  - 10.1016/s0195-5616(89)50005-6
UR  - https://pubmed.ncbi.nlm.nih.gov/2646819/
ID  - 2646819
ER  -