we therefore conclude that , where possible , f ( ab ' ) 2 fragments of murine monoclonal antibodies should be used for in vivo tumor localization studies to avoid possible immune complex formation , and that patients with rheumatoid arthritis should be considered to be possibly at higher risk of developing immune complex disease , were these rheumatoid factors to bind to the administered murine antibodies in vivo .
C0035448
rheumatoid factors
C0003241
antibodies