TY  - RPRT
TI  - Classification systems for osteonecrosis: an overview.
AU  - Marvin E Steinberg
AU  - David R Steinberg
PY  - 2004
DO  - 10.1016/j.ocl.2004.02.005
UR  - https://pubmed.ncbi.nlm.nih.gov/15271535/
ID  - 15271535
ER  -