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Oral versus intramuscular administration of vitamin B12 for the treatment of patients with vitamin B12 deficiency: a pragmatic, randomised, multicentre, non-inferiority clinical trial undertaken in the primary healthcare setting (Project OB12)

Sep 2019;19(3):219-224

Although the precise mechanisms of action of Delta Sleep-Inducing Peptide (DSIP) are not fully understood, research suggests that DSIP peptide modulates multiple neurotransmitter systems, including glutamate, GABA, and serotonin

Wright JW, Kawas LH, Harding JW

Taking readings at the same time each day, ideally in the morning before any activity, creates a baseline against which changes can be assessed