TY  - RPRT
TI  - Avoiding ridge resorption when using hydroxylapatite for augmentation.
AU  - A B Schaffer
PY  - 1997
DO  - 10.1016/s0278-2391(97)90110-5
UR  - https://pubmed.ncbi.nlm.nih.gov/9294523/
ID  - 9294523
ER  -