McKenna SP, Whalley D, Doward LC. Which outcomes are important in schizophrenia? Int J Methods Psychiatr Res. 2000;9(1):S58-67.
Renck-Hooper U, McKenna SP, Whalley D. Measuring quality of life in female urinary urge incontinence: development and psychometric properties of the IQoLI. J Drug Assess. 1998;1:41-8.