1. Liang MH. The historical and conceptual framework for functional assessment in rheumatic disease. J Rheumatol. 1987;14(suppl 51):2–5.
2. Duruöz MT, Poiraudeau S, Fermanian J, et al. Development and validation of a rheumatoid hand functional disability scale that assess functional handicap. J Rheumatol. 1996;23:1167–72.
3. Kimmerle M, Mainwaring L, Borenstein M. The functional repertoire of the hand and its application to assessment. Am J Occup Ther. 2003;57:489–98.
4. McPhee SD. Functional hand evaluations: a review. Am J Occup Ther. 1987;41:158–63.
5. World Health Organisation. International classification of impairments, disabilities and handicaps. Geneva: WHO; 1980.