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This continues a series of annual editorial features dedicated to clinical research: in 2025 , Angelini Pharma produced an animated video infographic walking through the key steps and professional roles involved in a clinical trial, and in 2024 published an in-depth overview of how clinical trials work from the four development phases to the role of regulatory authorities

European Commission

Hair, skin, and nails: B12 supports cell reproduction, so hair, skin, and nail health can suffer when levels are low

Rather than remembering daily pills, patients receive periodic injectionsoften monthly or biweekly depending on individual needsproviding sustained B12 levels between treatments

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2000;278:C81221