Cognitive improvement in mild to moderate Alzheimer's dementia after treatment with the acetylcholine precursor choline alfoscerate: a multicenter, double-blind, randomized, placebo-controlled trialAcute supplementation with alpha-glycerylphosphorylcholine augments growth hormone response to, and peak force production during, resistance exerciseGlycerophosphocholine enhances growth hormone secretion and fat oxidation in young adults