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Menstrual cycle timing may affect response, with some women reporting better results when beginning protocols at specific cycle phases
Interlaboratory agreement of insulin-like growth factor 1 concentrations measured by mass spectrometry (with discussion of AOD-9604 doping detection)
If needles aren't your thing, B12 supplements are also available in capsule, tablet, and liquid forms, which can often be purchased over-the-counter (via Medical News Today)
PMID 37973898
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