Color doppler ultrasound is a precise method to evaluate the position of the nasogastric tube in critical ill patients N.B. Acosta Pedemonte; D.H. Bagilet; N.S. Rocchetti; G.V. Torresan; N.A. Rodríguez; C.J. Settecase;

Possible adverse effects of the blood donation from brain-dead patients E. Jiménez-Guerra; J. Revuelto-Rey; N.S. Rocchetti; J.J. Egea-Guerrero;