Changes

B cells are small white blood cells that help the body defend itself against infection.  These cells are produced in [[bone marrow]]and develop into plasma cells which produce [[antibodies]].   

'''B cells''' are small white blood cells that help the body defend itself against infection.  These cells are produced in [[bone marrow]]and develop into plasma cells which produce [[antibodies]].   

B cells are also known as [[B lymphocytes]].<ref>http://www.cdc.gov/vaccines/about/terms/glossary.htm#b</ref>

B cells are also known as [[B lymphocytes]].<ref>http://www.cdc.gov/vaccines/about/terms/glossary.htm#b</ref>