Methods Serum ACA in 38 patients with DM were examined by enzyme-linked immunoassay(ELISA).We followed the trail of 17 patients with pos itive ACA.

• 方法应用酶联免疫吸附法(ELISA)检测了38例老年DM患者血清ACA，并对ACA阳性的17例患者进行了随访。