Price MA, Hill CD, Williams VSL, Morlock RJ, Leeuwenkamp O, Patterson TL. Measures of functional status and quality-of-life in schizophrenia. Curr Psychiatry Rev. 2008 Feb 1;4(1):28-38.
Watts (Wideman) K, McAvinchey G, Quiroz R. Language services in survey research. ATA Chronicle. 2002 Jul;31(7):36-7.