[Chang, Z. -Y.; Lai, X. -L.; Li, W. -P.; Fu, D.] Hunan Agr Univ, Fac Vet, Coll Vet Med, Changsha 410128, Hunan, Peoples R China.
[Cong, X. -L.; Wang, L. -P.; Huang, Y. -H.; Sun, R.] China Japan Union Hosp, Ctr Sci Res, Changchun 130033, Peoples R China.
[Huang, Y. -H.] Beijing Univ Technol, Coll Sci Bioengn, Beijing 100124, Peoples R China.
[Li, Y. -S.] Cent S Univ, Dept Orthoped, Xiangya Hosp, Changsha 410128, Hunan, Peoples R China.
[Han, X.; Li, Y. -S.] Adm Bur Petr North China, Gen Hosp, Dept Gen Surg, Renqiu 062552, Peoples R China.