Öhman SG, Sandberg C. Development of an Observational Instrument to Assess Gastro-Esophageal Reflux Disease in Premature Infants. Int. J. Child Health Nutr. [Internet]. 2014 May 28 [cited 2024 Dec. 28];3(2):84-92. Available from: http://lifescienceglobalca.com/index.php/ijchn/article/view/2006