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  1. Osteopathic medicine: What kind of doctor is a D.O.? - Mayo Clinic

    Dec 12, 2025 · You know what M.D. means, but what does D.O. mean? What's different and what's alike between these two kinds of health care providers?

  2. 现有人力资源部门的分工:六大模块、三支柱、六大模块&三支柱

    现阶段大多企业会在六大模型基础之上运用三支柱。 COE为方案、政策、策略输出者; HRBP为人力资源实操的践行者; SSC为基础人事的提供者。三者在企业中是互相配合与成就的,在现阶段的 企业 …

  3. Vitamin D - Mayo Clinic

    Mar 21, 2025 · Vitamin D is a nutrient the body needs, along with calcium, to build bones and keep them healthy. The body can absorb calcium only if it has enough vitamin D. Calcium is a major part of …

  4. Drug addiction (substance use disorder) - Mayo Clinic

    Jun 20, 2025 · Overview Drug addiction, also called substance use disorder, is a disease that affects a person's brain and behavior and leads to an inability to control the use of a legal or illegal drug or …

  5. Vitamin D toxicity: What if you get too much? - Mayo Clinic

    Feb 20, 2025 · Vitamin D toxicity is a rare condition that happens when too much vitamin D is in the body. The condition can have serious effects on health. Another name for it is hypervitaminosis D. …

  6. Too much vitamin C: Is it harmful? - Mayo Clinic

    Feb 20, 2025 · Vitamin C is an essential nutrient, but you can get too much of it. If you're an adult, limit yourself to no more than 2,000 milligrams (mg) of vitamin C a day. The recommended upper limit for …

  7. Symptoms - Symptoms - Mayo Clinic

    Explore possible causes for your medical symptoms.© 1998-2026 Mayo Foundation for Medical Education and Research (MFMER). All rights reserved.

  8. Influenza (flu) - Symptoms and causes - Mayo Clinic

    Dec 19, 2025 · Learn more about the symptoms, causes and prevention of this potentially deadly viral infection that attacks the respiratory system.

  9. Oppositional defiant disorder (ODD) - Mayo Clinic

    Jan 4, 2023 · Diagnosis To determine whether your child has oppositional defiant disorder, a mental health provider does a thorough psychological exam. ODD often occurs along with other behavioral …

  10. Edema - Symptoms and causes - Mayo Clinic

    Jul 28, 2023 · Learn about symptoms, causes and treatment of swelling caused by too much fluid in body tissues.