Relationship between lung computer tomographic density, gas exchange, and PEEP in acute respiratory failure. - Gattinoni,L.; Pesenti,A.; Bombino,M.; Baglioni,S.; Rivolta,M.; Rossi,F.; Rossi,G.; Fumagalli,R.; Marcolin,R.; Mascheroni,D.; Torresin,A. (Anesthesiology, 1988)