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2. Evidence for cell-mediated immunity to collagen in progressive systemic sclerosis;Stuart;J Lab Clin Med,1976
3. Subpopulations of human T lymphocytes: IX. imbalance of T cell subpopulations in patients with progressive systemic sclerosis;Gupta;Clin Exp Immunol,1979
4. Association of antinuclear and antinucleolar antibodies in progressive systemic sclerosis;Bernstein;Clin Exp Immunol,1982
5. Antinuclear and precipitating autoantibodies in progressive systemic sclerosis;Beck;Lancet,1963