Case of cytomegalovirus‐associated direct anti‐globulin test‐negative autoimmune hemolytic anemia

A 1‐year‐old boy developed autoimmune hemolytic anemia after a negative direct anti‐globulin test. The concentration of erythrocyte membrane‐associated immunoglobulin G, determined using an immunoradiometric assay, correlated with disease activity. He was positive for cytomegalovirus (CMV) both sero...

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