Direct Coombs test

Henry JB: Clinical Diagnosis and Management by Laboratory Methods, 20th ed. Saunders, 2001.

Wright MS & Smith LA: Laboratory investigation of autoimmune hemolytic anemias. Clin Lab Sci 1999; 12(2):119-122.

Jefferies LC: Transfusion therapy in autoimmune hemolytic anemia. Hematol Oncol Clin North Am 1994; 8(6):1087-1104.