2547
Replication - competent HBV strains with sG145R or sP120T and LAM resistance ( rtM204I or rtL180M / rtM204V ) were generated on an HBeAg - positive and an HBeAg - negative background with precore ( PC ) and basal core promoter ( BCP ) mutants .
 LAM, HBeAg, HBeAg
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 LAM, HBeAg, HBeAg