1. Enhancement of the antidepressant action of fluoxetine by folic acid: a randomised, placebo controlled trial;Coppen;Journal of Affective Disorders,2000
2. Enhancement of recovery from psychiatric illness by methylfolate;Godfrey;Lancet,1990
3. Enhancement of recovery from psychiatric illness by methylfolate;Procter;British Journal of Psychiatry,1991
4. Oral 5'-methyltetrahydrofolic acid in senile organic mental disorders with depression: Results of a double-blind multicenter study;Passeri;Aging,1993
5. Oral 5-methyltetrahydrofolate (MTHF) in depression associated with senile organic mental disorders (OMDs): a double-blind muticenter study vs trazodone (TRZ);Passeri;European Journal of Clinical Investigation,1991