NBC News correspondent David Bloom, who died Sunday of a blood clot while covering the war in Iraq, apparently ignored doctors' advice to seek medical attention just days before his death. According to Business Week reporter Frederik Balfour, who was traveling with Bloom, the 39-year-old weekend Today co-anchor complained of cramps behind his knee last week. After describing his symptoms via phone to doctors overseas, Bloom was told he may be suffering from deep venous thrombosis, a condition in which blood clots develop in veins deep within the body. The physicians advised him to seek medical attention, but Bloom "ignored their advice, swallowed some aspirin and kept on working," says Balfour. NBC could not confirm the report. For more on Bloom, click here.