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  1. Intensive care unit - Wikipedia

  2. Intensive Care Unit: What You Need to Know - WebMD

  3. When a Loved One Is in the Intensive Care Unit - Verywell Health

  4. CCU vs. ICU in a Hospital: What Are the Differences? - Healthline

  5. Critical Care - Overview - Mayo Clinic

  6. What is the ICU (Intensive Care Unit)? | Sutter Health

  7. Adult ICUs - Johns Hopkins Medicine

  8. Intensive Care Unit - Standards of Care

  9. Critical Care - UC San Diego Health

  10. Intensive care - NHS