title: Association of apnea and nonacid gastroesophageal reflux in infants: investigations with the intraluminal impedance technique.
authors.forename: Rita M
authors.initials: RM
authors.lastname: Steffen
mesh_terms: D001049:Apnea / Q000175:diagnosis* / Q000453:epidemiology*; D015331:Cohort Studies; D015897:Comorbidity; D017097:Electric Impedance; D005260:Female; D005500:Follow-Up Studies; D005744:Gastric Acid / Q000737:chemistry; D005764:Gastroesophageal Reflux / Q000175:diagnosis* / Q000453:epidemiology*; D006801:Humans; D006863:Hydrogen-Ion Concentration; D015994:Incidence; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D008991:Monitoring, Physiologic / Q000379:methods*; D018570:Risk Assessment; D012680:Sensitivity and Specificity