Authors: Grant, SFA Thorleifsson, G Frigge, ML Thorsteinsson, J Gunnlaugsdottir, B Geirsson, AJ Gudmundsson, M Vikingsson, A Erlendsson, K Valsson, J Jonsson, H Gudbjartsson, DF Stefansson, K Gulcher, JR Steinsson, K

Citation: Sfa. Grant et al., The inheritance of rheumatoid arthritis in Iceland, ARTH RHEUM, 44(10), 2001, pp. 2247-2254

Authors: Jonsson, T Thorsteinsson, J Valdimarsson, H

Citation: T. Jonsson et al., Elevation of only one rheumatoid factor isotype is not associated with increased prevalence of rheumatoid arthritis - a population based study, SC J RHEUM, 29(3), 2000, pp. 190-191

Authors: Halldorsdottir, HD Jonsson, T Thorsteinsson, J Valdimarsson, H

Citation: Hd. Halldorsdottir et al., A prospective study on the incidence of rheumatoid arthritis among people with persistent increase of rheumatoid factor, ANN RHEUM D, 59(2), 2000, pp. 149-151