TY  - RPRT
TI  - Preferred practice patterns.
AU  - R G Small
AU  - P L Hildebrand
PY  - 1996
DO  - 10.1016/s0161-6420(96)30396-5
UR  - https://pubmed.ncbi.nlm.nih.gov/9003331/
ID  - 9003331
ER  -