Identification of mothers at risk for congenital heart block and other neonatal lupus syndromes in their children. Comparison of enzyme-linked immunosorbent assay and immunoblot for measurement of anti-SS-A/Ro and anti-SS-B/La antibodies - Buyon,J.P.; Winchester,R.J.; Slade,S.G.; Arnett,F.; Copel,J.; Friedman,D.; Lockshin,M.D. (Arthritis Rheum, 1993)