title: 50 years ago in the Journal of Pediatrics: nitrogen excretion by newborn infants during oxygen breathing.
authors: Prof Pediatrics Emeritus, Penn State Hershey, Topsham, Maine.
authors: Nicholas M
authors: NM
authors: Nelson
mesh_terms: D049673:History, 20th Century; D006801:Humans; D007231:Infant, Newborn; D008168:Lung / Q000502:physiology; D008176:Lung Volume Measurements / Q000379:methods*; D009584:Nitrogen / Q000378:metabolism*; D010101:Oxygen Consumption / Q000502:physiology*; D010372:Pediatrics / Q000266:history*; D010506:Periodicals as Topic; D012119:Respiration
chemical_list: D009584:Nitrogen