title: Blood gas partial pressures and the onset of lung ventilation in the chick embryo.
mesh_terms: D000818:Animals; D000831:Animals, Newborn; D001502:Beak / Q000196:embryology; D001769:Blood; D002245:Carbon Dioxide / Q000097:blood*; D002642:Chick Embryo / Q000502:physiology*; D006863:Hydrogen-Ion Concentration; D007866:Leg / Q000033:anatomy & histology; D009132:Muscles / Q000033:anatomy & histology; D010100:Oxygen / Q000097:blood*; D010313:Partial Pressure; D012119:Respiration
chemical_list: D002245:Carbon Dioxide; D010100:Oxygen