each volunteer received a subcutaneous injection of either lmwh-dhe ( 1,500 u anti-xa of lmwh + 0.5 mg dhe ) , unfractionated heparin ( 5,000 iu ) or of placebo ( saline ) between 7 and 8 h in the morning on three different occasions .
C0019139
lmwh
C0019134
unfractionated heparin