Berntzen HB, Munthe E., Fagerhol MKA longitudinal study of the leukocyte protein L1 as an indicator of disease activity in patients with rheumatoid arthritis. J Rheumatol1989; 16: 1416-1420.
2.
Brun JG, Jonsson R., Haga H-J.Measurement of plasma calprotectin as an indicator of arthritis and disease activity in patients with inflammatory rheumatic diseases. J Rheumatol1994; 21: 733-738.
3.
Haga H-J. et al. Calprotectin in patients with systemic lupus erythematosus: relation to clinical and laboratory parameters of disease activity. Lupus1993; 2: 47-50.
4.
Wahren M. et al. Identification of antigenic regions of the human Ro 60kDa protein using recombinant antigen and synthetic peptides. J Autoimmun1992; 5: 319-332.