title: To correlate or not to correlate: what is the question?
authors.affiliation: Sharp Memorial Hospital, Pulmonary Services, San Diego, CA.
authors.forename: M
authors.initials: M
authors.lastname: Nield
authors.forename: I
authors.initials: I
authors.lastname: Gocka
mesh_terms: D015982:Bias; D001784:Blood Gas Analysis / Q000592:standards; D001785:Blood Gas Monitoring, Transcutaneous / Q000592:standards; D015400:Clinical Nursing Research / Q000379:methods*; D003627:Data Interpretation, Statistical; D006801:Humans; D016014:Linear Models; D008991:Monitoring, Physiologic / Q000592:standards*; D015203:Reproducibility of Results