3207
Consequently , we examined by immunohistochemistry , using the avidin - biotin - peroxidase method , Bcl - xL , Bax , and p53 expression in 56 samples of primary oral squamous cell carcinoma and in 22 matched pairs of primary and metastatic tumors .
 Anatomy: samples; Anatomy: primary oral squamous cell carcinoma; Anatomy: primary; Anatomy: metastatic tumors
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Anatomy 
Text: {0} 
 Entities: samples, primary oral squamous cell carcinoma, primary, metastatic tumors 
Answer:
 Anatomy: samples; Anatomy: primary oral squamous cell carcinoma; Anatomy: primary; Anatomy: metastatic tumors