To compare the degree of hemolysis in a group of direct antiglobulin test (DAT) positive (pos) African-American (AA) infants as measured by carboxyhemoglobin corrected (COHbc) for carbon monoxide in ...

A TWENTY-SEVEN-year-old woman with rheumatic heart disease had open-heart surgery on April 5, 1966. The direct Coombs tests before operation were negative. She was studied nine days later because of ...