What is Rheumatoid Factor?
It's an antibody, made by the immune system.
It's an antigen, on the synovial joint tissue.
It's an infection that can be detected in the blood.
It's a type of white blood cell.
Not the question you are looking for? Ask here!
Enter question by text
Enter question by image
Unlock Smarter Learning with AskSia Super!
Join Super, our all-in-one AI solution that can greatly improve your learning efficiency.