Another example of regression to the mean (not).
Alston
R Peter
RP
Deary
Ian J
IJ
Robson
Michael J
MJ
Andrews
Peter J
PJ
Souter
Michael J
MJ
D003072:Cognition Disorders / Q000209:etiology*; D001026:Coronary Artery Bypass / Q000009:adverse effects*; D006801:Humans; D011183:Postoperative Complications / Q000209:etiology*; D012044:Regression Analysis