@misc{indiciae654e42c7e827, title = {Externally hexed implants, abutments, and transfer devices: a comprehensive overview.}, author = {C E English}, year = {1992}, doi = {10.1097/00008505-199200140-00009}, url = {https://pubmed.ncbi.nlm.nih.gov/1298502/}, note = {Source identifier: 1298502} }