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LÆKNABLAÐIÐ 1992; 78: 243-9
249
the classification of systemic sclerosis (scleroderma).
Arth Rheum 1980; 23: 581-90.
19. Bohan A, Peter JB. Polymyositis and
dermatomyositis. N Engl J Med 1975; 292: 403-7.
20. Alarcón-Segovia D. Symptomatic Sjögren’s syndrome
in mixed connective tissue disease. J Rheum 1976; 3:
191-5.
21. Alarcón-Segovia D, Cardiel MH. Comparison
between 3 diagnostic criteria for mixed connective
tissue disease. Study of 593 patients. J Rheum 1989;
16: 328-34.
22. Segi M. Cancer mortality for selected sites in 24
countries (1950-1957). Sendai: Tohoku University
School of Medicine, 1960.
23. Haenszel W, Loveland D. Sirken MG. Lung cancer
mortality as related to residence and smoking
histories. J Nat Cancer Inst 1962; 28: 947-1001.
24. Safavi K, Heyse S, Hochberg M. Estimating the
incidence and prevalence of rare diseases: A review
of methodology and available data sources. J Rheum
1990; 17: 990-3.
25. Teitsson I, Þorsteinsson J. Rauðir úlfar á fslandi.
Læknaneminn 1977; 30 (1-2): 5-11.
26. Guðmundsson S, Steinsson K. Systemic lupus
erythematosus in Iceland 1975 through 1984. A
nationwide epidemiological study in an unselected
population. J Rheum 1990; 17: 1162-7.
27. Bennett RB. Mixed connective tissue disease and
other overlap syndromes. In: Kelley WN, Harris
ED Jr, Ruddy S, Sledge CB, eds. Textbook of
Rheumatology: WB Saunders, 1989: 1150.
28. Sharp G, Irvin W, Tan E, Gould R, Holman H.
Mixed connective tissue disease - an apparently
distinct rheumatic disease syndrome associated with
a specific antibody to an extractable nuclear antigen
(ENA). Am J Med 1972; 52: 148-59.
29. Niemelstein SH, Brody S, McShane D, et al. Mixed
connective tissue disease: A subsequent evaluation of
the original 25 patients. Medicine (Baltimore) 1980;
5-9: 239-48.