title: A study of migraine in pregnancy.
mesh_terms: D002536:Cerebral Arteries; D005260:Female; D006801:Humans; D006908:Hydroxyprogesterones / Q000097:blood; D008881:Migraine Disorders / Q000097:blood / Q000453:epidemiology / Q000209:etiology*; D011247:Pregnancy; D011248:Pregnancy Complications; D011374:Progesterone / Q000097:blood
chemical_list: D006908:Hydroxyprogesterones; D011374:Progesterone