[Ma Xiaofeng] Univ South China, Dept Cardiol, Affiliated Nanhua Hosp, Hengyang 421001, Peoples R China.
[Qu Kai; Ma Xiaofeng; Liu Yami; Wang Zuo] Univ South China, Inst Cardiovasc Dis, Key Lab Atherosclerol Human Prov, Hengyang 421001, Peoples R China.
[Tan Yanmei] Changde Vocat Tech Coll, Dept Pathol, Changde 415000, Peoples R China.
[He Xinglan] Women & Children Healthcare Hosp Zhu Zhou, Zhuzhou 412000, Peoples R China.
[Zhang Hai] Univ South China, Dept Pathol, Affiliated Hosp 1, Hengyang 421001, Peoples R China.