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Roux-en-Y gastric bypass surgery (RYGB) but not sleeve gastric bypass surgery or gastric banding, increases the risk of vitamin B 12 deficiency and requires preventive post-operative treatment with either injected or high-dose oral supplementation
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There are thousands of peptides in your body, and they are involved in a variety of functions
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However, standard subcutaneous injection elsewhere also produces systemic effects that benefit hair follicles throughout the scalp
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