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doi: 10.1007/s00726-008-0130-x
PMID: 29311918

Jagasia R, Steib K, Englberger E, Herold S, Faus-Kessler T, Saxe M, et al
Studies on Epithalon and its long-term effects on aging biomarkers and cellular health consistently treat the off-cycle period as a functional part of the protocol, not dead time
