Factors that impact data collection from children.
D002648:Child; D002673:Child, Hospitalized / Q000523:psychology; D002675:Child, Preschool; D003625:Data Collection; D006801:Humans; D007398:Interpersonal Relations; D009369:Neoplasms / Q000503:physiopathology* / Q000523:psychology / Q000628:therapy; D010865:Pilot Projects; D012107:Research Design