title: Dyspnoea in normal pregnancy.
mesh_terms: D000222:Adaptation, Physiological; D002245:Carbon Dioxide; D004417:Dyspnea / Q000209:etiology*; D005260:Female; D006801:Humans; D006985:Hyperventilation / Q000209:etiology; D011247:Pregnancy; D011248:Pregnancy Complications / Q000209:etiology*
chemical_list: D002245:Carbon Dioxide