Table 1. Hindlimb Blood Flow, Arterial Norepinephrine Concentration, Hindlimb Norepinephrine Spillover and Clearance, Systemic Norepinephrine Spillover and Clearance, Heart Rate, and Systolic and Diastolic Blood Pressure at Baseline before Intraarterial Infusion of Isoproterenol in Awake Dogs and during Halothane (1.0 MAC) Anesthesia