Conclusion:The first symptome of JDM is skin lesion at most, which can result in calcinosis late in the course of the disease.
结论：JDM多以皮肤损害为首发症状，后期可引起钙质沉着；
Onset of illness and evoke factor, relation between miction and syocope, portent symptome of syocope and valsalva's test of electrocardiogram were analyzed.
分析发病时间与诱因，排尿与昏厥的关系，昏厥前征兆、临床症状和心电图乏氏试验。
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