RT Journal Article SR Electronic T1 Review: Vitamin B6 is beneficial in the premenstrual syndrome JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 182 OP 182 DO 10.1136/ebm.4.6.182 VO 4 IS 6 YR 1999 UL http://ebm.bmj.com/content/4/6/182.abstract AB