TY  - RPRT
TI  - The Steffee variable screw placement system using different methods of bone grafting.
AU  - K Yashiro
AU  - T Homma
AU  - Y Hokari
AU  - Y Katsumi
AU  - H Okumura
AU  - A Hirano
PY  - 1991
DO  - 10.1097/00007632-199111000-00014
UR  - https://pubmed.ncbi.nlm.nih.gov/1750008/
ID  - 1750008
ER  -