1. Improving the Measurement of Functional Somatic Symptoms With Item Response Theory. (December 2021) Authors: Acevedo-Mesa, Angélica; Tendeiro, Jorge Nunes; Roest, Annelieke; Rosmalen, Judith G. M.; Monden, Rei Journal: Assessment Issue: Volume 28:Number 8(2021) Page Start: 1960 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗