[1] REG RED CROSS BLOOD SERV, NASHVILLE, TN USA
[2] VET ADM HOSP, TAMPA, FL 33612 USA
[3] VANDERBILT UNIV, SCH MED,ELLIOT V NEWMAN CLIN RES CTR,DEPT MED, DIV HEMATOL, NASHVILLE, TN 37240 USA
[4] VANDERBILT UNIV, SCH MED, ELLIOT V NEWMAN CLIN RES CTR, SURG SCI SECT, NASHVILLE, TN 37240 USA
[5] UNIV S FLORIDA, SCH MED, TAMPA, FL 33620 USA