Morphologycal Observation of Age-Associated Changes in the Thymus of the Yak
ZHANG Qian, YU Si-jiu, HE Jun-feng, CUI Yan
ACTA VETERINARIA ET ZOOTECHNICA SINICA . 2013, (8): 1305 -1310 .  DOI: 10.11843/j.issn.0366-6964.2013.08.019