Cognitive interviewing methodology in the development of a pediatric item bank: a patient reported outcomes measurement information system (PROMIS) study
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Irwin, Debra E; Varni, James W; Yeatts, Karin; DeWalt, Darren A (2009). Cognitive interviewing methodology in the development of a pediatric item bank: a patient reported outcomes measurement information system (PROMIS) study. Health and Quality of Life Outcomes. Available electronically from https : / /hdl .handle .net /1969 .1 /179800.