The group I received simply heavy Marcain 0, 5% 10 - 12 mg and the group II received heavy Marcain 0, 5% 8 - 10 mg combined with Fentanyl 30 μg.
Nhóm II dùng Marcain tăng trọng 8 - 10 mg có thêm 30 ìg Fentanyl.