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The effects of dietary tryptophan on affective disorders.
Lindseth G, Helland B, Caspers J. Lindseth G, et al. Among authors: helland b. Arch Psychiatr Nurs. 2015 Apr;29(2):102-7. doi: 10.1016/j.apnu.2014.11.008. Epub 2014 Dec 9. Arch Psychiatr Nurs. 2015. PMID: 25858202 Free PMC article. Clinical Trial.
Dietary Effects on Cognition and Pilots' Flight Performance.
Lindseth GN, Lindseth PD, Jensen WC, Petros TV, Helland BD, Fossum DL. Lindseth GN, et al. Among authors: helland bd. Int J Aviat Psychol. 2011;21(3):269-282. doi: 10.1080/10508414.2011.582454. Epub 2011 Jul 5. Int J Aviat Psychol. 2011. PMID: 29353985 Free PMC article.