Four sheep installed chronic catheters in the portal vein，hepatic vein and mesenteric vein were used to study the effects......

在4头门静脉、肝静脉、肠系膜静脉和股动脉上安装血管导管的绵羊中研究了克伦特罗(CL,0.8 mg/kg BW,肠系膜静脉给药,每天2次,连续5......