TY  - RPRT
TI  - Comparing apples and oranges ...
AU  - Stefan Beckers
AU  - Michael Mueller
PY  - 2006
DO  - 10.1097/01.ccm.0000229640.13375.89
UR  - https://pubmed.ncbi.nlm.nih.gov/16883208/
ID  - 16883208
ER  -