[1] PENN STATE UNIV, MILTON S HERSHEY MED CTR,SCH MED,DEPT MED, DIV HEMATOL, HERSHEY, PA 17033 USA
[2] PENN STATE UNIV, MILTON S HERSHEY MED CTR,SCH MED,DEPT MED, DIV CLIN HEMATOL, HERSHEY, PA 17033 USA
[3] SUNY STONY BROOK, DEPT MED, DIV HEMATOL, STONY BROOK, NY 11794 USA
[4] CORNELL UNIV, MED CTR, COLL MED, DEPT MED, DIV HEMATOL ONCOL, NEW YORK, NY 10021 USA
[5] ROOSEVELT HOSP, DEPT MED, DIV HEMATOL, NEW YORK, NY 10019 USA
[6] COLUMBIA UNIV COLL PHYS & SURG, NEW YORK, NY 10032 USA
[7] UNIV TENNESSEE, COLL VET MED, KNOXVILLE, TN 37996 USA