Gnanasakthy A, DeMuro-Mercon CJ. Logistical considerations for intergrating patient-reported outcomes in multiregional clinical trials. Clinical Researcher. 2015 Apr;45-8.
Whalley D, McKenna SP, de Jong Z, van der Heijde D. Quality of life in rheumatoid arthritis. Br J Rheumatol. 1997;36(8):884-8.
de Jong Z, van der Heijde D, McKenna SP, Whalley D. The reliability and construct validity of the RAQoL: a rheumatoid arthritis-specific quality of life instrument. Br J Rheumatol. 1997;36(8):878-83.