Müller-Bühl, U., Franke, B., Krug, K., & Engeser, P. (2011). Lowering missing item values in quality-of-life questionnaires: An interventional study. International journal of public health, 56, .
Chicago Style (17th ed.) CitationMüller-Bühl, Uwe, Bernhard Franke, Katja Krug, and Peter Engeser. "Lowering Missing Item Values in Quality-of-life Questionnaires: An Interventional Study." International Journal of Public Health 56 (2011).
MLA (9th ed.) CitationMüller-Bühl, Uwe, et al. "Lowering Missing Item Values in Quality-of-life Questionnaires: An Interventional Study." International Journal of Public Health, vol. 56, 2011.
Warning: These citations may not always be 100% accurate.