Significance of investigations of the respiratory rate in premature infants.
D006801:Humans; D007231:Infant, Newborn; D007234:Infant, Premature / Q000502:physiology*; D007235:Infant, Premature, Diseases / Q000503:physiopathology*; D012119:Respiration / Q000502:physiology*; D012129:Respiratory Function Tests