Activation of 'GABA IND.A' but not 'GABA IND.B' receptors in the NTS blocked bradycardia of chemoreflex in awake rats - Callera, João Carlos; Bonagamba, Leni Gomes Heck; Nosjean, Anne; Laguzzi, Raul; Machado, Benedito Honório (American Journal of Physiology: Heart and Circulatory Physiology, 1999)