Authors: de Vet, HCW Bouter, LM Bezemer, PD Beurskens, AJHM

Citation: Hcw. De Vet et al., Reproducibility and responsiveness of evaluative outcome measures - Theoretical considerations illustrated by an empirical example, INT J TE A, 17(4), 2001, pp. 479-487

Authors: Beurskens, AJHM Bultmann, U Kant, I Vercoulen, JHMM Bleijenberg, G Swaen, GMH

Citation: Ajhm. Beurskens et al., Fatigue among working people: validity of a questionnaire measure, OCC ENVIR M, 57(5), 2000, pp. 353-357

Authors: Ostelo, RWJG Koke, AJA Beurskens, AJHM de Vet, HCW Kerckhoffs, MR Vlaeyen, JWS Wolters, PMJC Berfelo, MW van den Brandt, PA

Citation: Rwjg. Ostelo et al., Behavioral-graded activity compared with usual care after first-time disk surgery: Considerations of the design of a randomized clinical trial, J MANIP PHY, 23(5), 2000, pp. 312-319