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2024年4月10日 · What Is Vitamin D Deficiency? A vitamin D deficiency means you don't have enough of this vitamin in your body. You need vitamin D to grow and maintain your bones.
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2024年6月19日 · What Are Sleeping Pills? Most sleeping pills are classified as sedative hypnotics. That's a specific class of drugs used to help you fall asleep or stay asleep. Sedative hypnotics include...
2024年6月2日 · COVID-19 is the most recent example of a worldwide pandemic caused by a viral or bacterial infection. (Photo Credit: iStock/Getty Images) Throughout history, millions of people have died of...