Corresponding Author

Dong-Qing Ye

Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui, 230032 China

Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, 81 Meishan Road, Hefei, Anhui, 230032 China

Correspondence

Dong-Qing Ye, Address: Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui, China

(ydqahmu@126.com)

Hai-Feng Pan, Address: Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Mei-Shan Road, Hefei, Anhui, 230032, PR China, Tel: +86 551 65161165; Fax: +86 551 65161171.

(panhaifeng1982@sina.com)