Medline ® Abstract for Reference 13
of 'Anti-U1 RNP antibodies in mixed connective tissue disease'
Posttranslational protein modifications, apoptosis, and the bypass of tolerance to autoantigens.
Utz PJ, Anderson P
Arthritis Rheum. 1998;41(7):1152.
Brigham and Women's Hospital, Boston, Massachusetts 02115, USA.