Ventegodt & Merrick 2003, p. 1021. Ventegodt, Soren; Merrick, Joav (2003), "Measurement of Quality of Life VII. Statistical Covariation and Global Quality of Life Data: The Method of Weight-Modified Linear Regression", The Scientific World Journal, 3: 1020–1029, doi:10.1100/tsw.2003.89, PMC5974886, PMID14570992
Ventegodt & Merrick 2003, p. 2021. Ventegodt, Soren; Merrick, Joav (2003), "Measurement of Quality of Life VII. Statistical Covariation and Global Quality of Life Data: The Method of Weight-Modified Linear Regression", The Scientific World Journal, 3: 1020–1029, doi:10.1100/tsw.2003.89, PMC5974886, PMID14570992
Ventegodt & Merrick 2003, p. 1021. Ventegodt, Soren; Merrick, Joav (2003), "Measurement of Quality of Life VII. Statistical Covariation and Global Quality of Life Data: The Method of Weight-Modified Linear Regression", The Scientific World Journal, 3: 1020–1029, doi:10.1100/tsw.2003.89, PMC5974886, PMID14570992
Ventegodt & Merrick 2003, p. 2021. Ventegodt, Soren; Merrick, Joav (2003), "Measurement of Quality of Life VII. Statistical Covariation and Global Quality of Life Data: The Method of Weight-Modified Linear Regression", The Scientific World Journal, 3: 1020–1029, doi:10.1100/tsw.2003.89, PMC5974886, PMID14570992
Ventegodt & Merrick 2003, p. 1021. Ventegodt, Soren; Merrick, Joav (2003), "Measurement of Quality of Life VII. Statistical Covariation and Global Quality of Life Data: The Method of Weight-Modified Linear Regression", The Scientific World Journal, 3: 1020–1029, doi:10.1100/tsw.2003.89, PMC5974886, PMID14570992
Ventegodt & Merrick 2003, p. 2021. Ventegodt, Soren; Merrick, Joav (2003), "Measurement of Quality of Life VII. Statistical Covariation and Global Quality of Life Data: The Method of Weight-Modified Linear Regression", The Scientific World Journal, 3: 1020–1029, doi:10.1100/tsw.2003.89, PMC5974886, PMID14570992