A clinical trial of the effect of St. Johnâ€™s wort on migraine headaches in patients receiving sodium valproate
Mahmoud Gh. Mirzaei1, Robert D. E. Sewell2, Soleiman Kheiri1 and
1Shahrekord University of Medical Sciences, Medical Plants Research Center, Shahrekord, Iran.
2Welsh School of Pharmacy, Cardiff University, King Edward VII Ave., Cardiff CF10 3NB, U. K.
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