Table 1.

Drug administration and sample collections.

	Group 1 Enoxaparin	Group 2 Nadroparine Calcium
Subcutaneous injection at:
Day 1	Hour 8 – 16 – 20	Hour 8 – 16 – 20
Day 3	Hour 8 – 16 – 20	Hour 8 – 16 – 20
Blood samples taken at:
Day 1	Hour 11 PM	Hour 11 PM
Day 3	Hour 6 AM	Hour 11 PM