[1] UNICAMP, FAC MED SCI, DEPT PHARMACOL, BR-13081970 CAMPINAS, SP, BRAZIL
[2] UNICAMP, HEMATOL & HEMOTHERAPY CTR, BR-13081970 CAMPINAS, SP, BRAZIL
[3] FED UNIV CEARA, DEPT PHYSIOL & PHARMACOL, FORTALEZA, CEARA, BRAZIL
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