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An imprecise protocol can skew data and undermine weeks, or even months, of hard work

[DOI] [PubMed] [Google Scholar] 22.Wang X, Liu B, Xu Q, et al

Randomized, double blind, controlled placebo-phase in trial of low dose phenelzine in the chronic fatigue syndrome

For some, immune overactivation or gut imbalances are key contributors
A high vitamin B12 blood level is possible
Journal of Physiology, Paris, 97 (23), 221226