TY - JOUR T1 - Blood flow measurements in rats using four color microspheres during blockade of different vasopressor systems JO - Brazilian Journal of Medical and Biological Research A1 - De Angelis, K. A1 - Gama, V.M. A1 - Farah, V.A.M. A1 - Irigoyen, M.C. SN - 0100-879X UL - 10.1590/S0100-879X2005000100018 VL - 38 Y1 - 2005 PB - Brasil ER -