Clinical trial design--effect of prone positioning on clinical outcomes in infants and children with acute respiratory distress syndrome.

Curley MA, Arnold JH, Thompson JE, Fackler JC, Grant MJ, Fineman LD, Cvijanovich N, Barr FE, Molitor-Kirsch S, Steinhorn DM, Matthay MA, Hibberd PL, Pediatric Prone Positioning Study Group