2008-03-01

In the January/February article "The Envelope Please: The ASH Meeting Top Ten List," the research described in #8 was about myelodysplastic syndromes (MDS), not myeloproliferative disorders (MPD).

In the January/February article "Oscar D. Ratnoff: Champion of Clotting," John Hageman was incorrectly identified. John Hageman did not have his medical degree; he was a freight-train brakeman who died of pulmonary embolism after a fall from a boxcar.