EARLY UNDIFFERENTIATED CONNECTIVE TISSUE DISEASE

本研究的目的是评价EUCTD患者，以确定 什么样的历史，物理和血清学特征是预测的 这种疾病的发展过程。 本研究的另一个目的是 评估类风湿性关节炎、系统性狼疮患者 红斑，多发性肌炎，进行性系统性硬化症， 超过12个月的持续时间，以确定10年的总体预后 是否有任何历史，物理和血清学特征， 预测结果。

The purpose of this study is to evaluate patients with EUCTD to determine what historical, physical, and serologic features are predictive of the evolution of this disease process. The other purpose of this study is to evaluate patients with rheumatoid arthritis, systemic lupus erythematosus, polymyositis, and progressive systemic sclerosis of less than 12 months duration to determine the overall prognosis over a 10 year period and whether any historical, physical, and serologic features are predictive of outcome.