Maternal hyperventilation during labor.
D000136:Acid-Base Equilibrium; D000328:Adult; D000818:Animals; D005260:Female; D005315:Fetal Diseases / Q000209:etiology*; D006168:Guinea Pigs; D006801:Humans; D006985:Hyperventilation; D007231:Infant, Newborn; D007744:Obstetric Labor Complications; D011247:Pregnancy