What are hepatitis B surface antibodies, and how do they help the immune system? 

, U.K. 
 - 6p. 
 - Medical News Today .
<br/><br/> This article explains what hepatitis B surface antibodies are, how hepatitis B blood tests work, and how to interpret the results. 
<br/><br/><br/>Available in: English 
<br/><br/><label>Subjects--Index Terms: </label>Diagnosis & assessment: Tests/procedures