1. Prevalence of primary Raynaud phenomenon in young females;Olsen, N.; L, Nielsen S.;Scand J Clin Lab Invest,1978
2. Prevalence of Raynaud phenomenon in the general population;R, Maricq H.; C, Weinrich M.; E, Keil J.; E, LeRoy C.;J Chronic Dis,1986
3. Systemic sclerosis: a clinical study of 727 cases;L, Tuffanelli D.; K, Winkelmann R.;Arch Dermatol
4. Survival in scleroderma;Bennett, R.; Bluestone, R.; L, Holt P.J.; L, Bywaters E.G.;Ann Rheum Dis,1971
5. Systemic lupus erythematosus in the community;J, Fessel W.;Arch Intern Med,1974