RT Journal Article SR Electronic T1 A study of migraine in pregnancy JF Neurology JO Neurology FD Lippincott Williams & Wilkins SP 824 OP 824 DO 10.1212/WNL.22.8.824 VO 22 IS 8 A1 Brian W. Somerville YR 1972 UL http://n.neurology.org/content/22/8/824.abstract AB