CHINESE JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY, Volume 25, Issue 1,2009, Pages 33-36, doi:10.3969/j.issn.1001-7399.2009.01.009
ACTA VETERINARIA ET ZOOTECHNICA SINICA, Volume 40, Issue 1,2009, Pages 145-148, doi:10.3321/j.issn:0366-6964.2009.01.026