Phase relationships between thoracic and abdominal respiratory movement during sleep in 31 - 38 weeks CA normal infants. Comparison with full-term (39 - 41 weeks) newborns.
D000005:Abdomen / Q000502:physiology*; D006801:Humans; D007231:Infant, Newborn; D007234:Infant, Premature; D009068:Movement; D009132:Muscles / Q000502:physiology; D012143:Respiratory Physiological Phenomena; D012890:Sleep / Q000502:physiology*; D012894:Sleep Stages / Q000502:physiology; D013909:Thorax / Q000502:physiology*