title: The validity of scalp sampling.
mesh_terms: D000818:Animals; D001158:Arteries; D001784:Blood Gas Analysis; D002196:Capillaries; D002245:Carbon Dioxide / Q000097:blood; D005260:Female; D005333:Fetus; D006863:Hydrogen-Ion Concentration; D010092:Oximetry; D010313:Partial Pressure; D011247:Pregnancy; D011270:Pregnancy, Animal; D012535:Scalp / Q000098:blood supply*; D012756:Sheep; D013312:Stress, Physiological; D014469:Umbilical Arteries; D014471:Umbilical Veins; D014680:Veins
chemical_list: D002245:Carbon Dioxide