1.SenL,etal.JPharmacolExpTher1998;285(2)∶687 2.TakenakaK,etal.JCardiol2000;36(Suppl.1)∶Abst.143 3.Inpharma1999;1188∶8 4.PritchettELC,etal.AmCollCardiol2000;36∶794 ......