RT Journal Article SR Electronic T1 Prevention of migraine JF Saudi Medical Journal JO Saudi Med J FD Prince Sultan Military Medical City SP 502 OP 503 VO 21 IS 5 A1 Pahlavan, S. A1 Deleu, Dirk A1 Hanssens, Yolande YR 2000 UL http://smj.org.sa/content/21/5/502.abstract AB