RT Journal Article SR Electronic T1 Ginger was equivalent to pyridoxine hydrochloride (vitamin B6) for reducing nausea and vomiting in pregnancy JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 14 OP 14 DO 10.1136/ebm.10.1.14 VO 10 IS 1 YR 2005 UL http://ebm.bmj.com/content/10/1/14.abstract AB