TY  - RPRT
TI  - Developing criteria for ordering common ancillary services.
AU  - R V Harrison
AU  - B C Payne
PY  - 1991
DO  - 10.1097/00005650-199109000-00006
UR  - https://pubmed.ncbi.nlm.nih.gov/1921536/
ID  - 1921536
ER  -