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Ramanathan L, Gulyani S, Nienhuis R, Siegel JM (2002) Sleep deprivation decreases superoxide dismutase activity in rat hippocampus and brainstem
Retinol, a less potent vitamin A form than tretinoin, can be less irritating for some users
For how peptides engage targets and relay signals generally, see how signaling peptides work and the science behind cellular signaling
Ribonuclease A is remarkably stable
Schomburg, 2012
Red bone marrow is the site of manufacturing for new immune cells and red blood cells, while yellow marrow consists of healthy fats (19, 20)
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