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Serum B12 levels below 200 pg/mL generally indicate deficiency, while levels between 200-300 pg/mL represent an indeterminate zone where additional testing (methylmalonic acid, homocysteine) may clarify status
Radiofrequency and ultrasound skin tightening treatments work by heating deeper tissues to stimulate collagen production
10.1080/17512433.2016.1208563 Summary Keywords liver disease, natural products, flavonoids, novel therapeutic drugs, hepatoprotective effect Citation Liao Y, Lv F, Quan T, Wang C and Li J (2024) Flavonoids in natural products for the therapy of liver diseases: progress and future opportunities
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