1. 2015.2. Yu VY. Global, regional and national perinatal and neonatal mortality. Journal of perinatal medicine. 2003 Oct 1
2. 31(5):376-9.3. Ghorbani F, Valizadeh S, Asadollahi M. Comparison of Prone and Supine Positions on Oxygenation of Premature Infants with Respiratory Distress Syndrome Treated with Nasal CPAP in Tabriz Alzahra Hospital, 2010, Tabriz, Iran. Qom Univ Med Sci J. 2012
3. 6(4): 57-63. [Text in Persian ]4. Eghbalian F, Moeinipour A. Effect of neonatal position on oxygen saturation in Hospitalized premature infants with respiratory distress syndrome. Annali Military Health Sci Res 2008
4. 6(1): 9-13. [Text in Persian] 5. Courtney SE, Pyon KH, Saslow JG, Arnold GK, Pandit PB, Habib RH. Lung recruitment and breathing pattern during variable versus continuous flow nasal continuous positive airway pressure in prenmature infants: An evaluation of 3 devices. Pediatrics 2001
5. 107(2:):304-8.6. Gergegory GA, Kitterman JA, Phibbs RH, Tooley WH, Hamilton WK. treatment of the idiopathic respiratory distress syndrome with continuous positive airway pressure. N Engl J Med 1971