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Research into therapeutic peptides started with fundamental studies of natural human hormones, including insulin, oxytocin, vasopressin, and gonadotropin-releasing hormone (GnRH), and their specific physiological activities in the human body2
References Abdullah, N., Tieppo Francio, V., Falowski, S., Ibrahim, Y., Malinowski, M., Budwany, R.,
July 26, 2022 Can taking high-dose vitamin B-6 or B-12 improve self-reported anxiety
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