TY  - RPRT
TI  - [Two-staged closed procedure for ridge augmentation with hydroxyapatite (second phase ending the study)].
AU  - H Klumpen
AU  - P Leonhardt
PY  - 1988
UR  - https://pubmed.ncbi.nlm.nih.gov/3165763/
ID  - 3165763
ER  -