TY  - RPRT
TI  - Stulberg classification system.
AU  - J Chell
AU  - M J Flowers
PY  - 2000
DO  - 10.2106/00004623-200010000-00040
UR  - https://pubmed.ncbi.nlm.nih.gov/11057493/
ID  - 11057493
ER  -