Additive effect of nitric oxide inhalation on the oxygenation benefit of the prone position in the adult respiratory distress syndrome. - Germann,P.; Poschl,G.; Leitner,C.; Urak,G.; Ullrich,R.; Faryniak,B.; Roder,G.; Kaider,A.; Sladen,R.. (Anesthesiology, 1998)