title: Fetal respiration: a review of two techniques for observation.
mesh_terms: D000818:Animals; D001769:Blood; D001786:Blood Glucose; D002245:Carbon Dioxide / Q000097:blood; D002415:Cats; D005260:Female; D005312:Fetal Blood; D005323:Fetal Monitoring / Q000379:methods*; D005333:Fetus / Q000502:physiology*; D006168:Guinea Pigs; D006801:Humans; D006863:Hydrogen-Ion Concentration; D010100:Oxygen / Q000097:blood; D010313:Partial Pressure; D011247:Pregnancy; D011817:Rabbits; D012119:Respiration; D012756:Sheep; D012907:Smoking / Q000150:complications; D014159:Transducers; D014463:Ultrasonography
chemical_list: D001786:Blood Glucose; D002245:Carbon Dioxide; D010100:Oxygen