Changes

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

Lymphocytes is small white blood cells that help the body defend itself against infection.  These cells is produced in [[bone marrow]] and develop into [[plasma cells]] which produce [[antibodies]].  Lymphocytes is also known as [[B cells]].<ref>http://www.cdc.gov/vaccines/about/terms/glossary.htm#l</ref>

==References==

==References==