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George I. Papakostas,
Timothy Petersen,
Barry D. Lebowitz,
David Mischoulon,
Julie L. Ryan,
Andrew A. Nierenberg,
Teodoro Bottiglieri,
Jonathan E. Alpert,
Jerrold F. Rosenbaum
and Maurizio Fava
(2005).
The relationship between serum folate, vitamin B12, and homocysteine levels in major depressive disorder and the timing of improvement with fluoxetine. The International Journal of Neuropsychopharmacology,
8
,
pp 523-528
doi:10.1017/S1461145705005195