@misc{indiciaef8e00b9e6fa3, title = {[Two-staged closed procedure for ridge augmentation with hydroxyapatite (second phase ending the study)].}, author = {H Klumpen and P Leonhardt}, year = {1988}, url = {https://pubmed.ncbi.nlm.nih.gov/3165763/}, note = {Source identifier: 3165763} }