Neurally adjusted ventilatory assist vs pressure support ventilation for noninvasive ventilation during acute respiratory failure: a crossover physiologic study. - Bertrand PM; Futier E; Coisel Y; Matecki S; Jaber S; Constantin JM; Bertrand, Pierre-Marie; Futier, Emmanuel; Coisel, Yannael; Matecki, Stefan; Jaber, Samir; Constantin, Jean-Michel (CHEST, 2013)