2548
The sG145R mutation strongly reduced HBsAg levels and was able to fully restore the impaired replication of LAM - resistant HBV mutants to the levels of wild - type HBV , and PC or BCP mutations further enhanced viral replication .
 Chemical: HBsAg; Chemical: LAM
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
 Entities: HBsAg, LAM 
Answer:
 Chemical: HBsAg; Chemical: LAM