TY  - GEN
AU  - Patterson,Pat
TI  - Why are there so many unneeded preop tests?
SN  - 8756-8047
PY  - 2013///0426
KW  - Diagnostic Tests, Routine
KW  - statistics & numerical data
KW  - Humans
KW  - Preoperative Care
KW  - United States
N1  - Publication Type: Journal Article
ER  -