1 From the Department of Diagnostic Radiology, Yale University School of Medicine, 789 Howard Ave, TE2-230, New Haven, CT 06519-1304 (J.A.B.); and Department of Diagnostic Radiology, Mayo Clinic, Jacksonville, Fla (R.L.M.). Received August 26, 2012; revision requested August 28; revision received and final version accepted August 30. Address correspondence to J.A.B. (e-mail: [email protected]).

Multicollinearity can be briefly described as the phenomenon in which two or more identified predictor variables in a multiple regression model are highly correlated. The presence of this phenomenon can have a negative impact on the analysis as a whole and can severely limit the conclusions of the research study. This paper reviews and provides examples of the different ways in which multicolli...

Awareness of the ancestral human diet might advance traditional nutrition science. The human genome has hardly changed since the emergence of behaviourally-modern humans in East Africa 100-50 x 10(3) years ago; genetically, man remains adapted for the foods consumed then. The best available estimates suggest that those ancestors obtained about 35% of their dietary energy from fats, 35% from car...