328 EH patients (enrolled the department of cardiology, the second affiliated hospital of Dalian medical university) are EH group, with 571 healthy people as control group.

• 328例EH患者(来自大连医科大学附属二院心血管门诊),571例健康人(来自大连医科大学附属二院门诊体检者)为正常对照。