There was significant difference in distribution of Warthin tumor and pleomorphic adenoma between the First Affiliated Hospital and the Second Affiliated Hospital of SUMC , and so was the origin regions of the patients between these two hospitals .
附一、附二院间的Warthin瘤和多形性腺瘤的构成比有显著差异，两院间病人的地区来源亦然。
SUMC