1. 49-year-old man with small-cell lung carcinoma was admitted because of syncope.

2. A 30-year-old woman with coma

3. Fever and abdominal pain

5. 61-year-old man presented with a reddish brown rash in his groin ;

8. A 50-year-old man with abdominal pain

9. 66-year-old man was evaluated for recurrent cardiac decompensation and a 2- year history of worsening heart failure.

10. 39-year-old man was brought to the emergency department with altered mental status

12. 87-year-old woman with iatrogenic cushing’s syndrome presented with fever and shock.

13. 50-year-old woman with abdominal pain and vomiting

14. 12-year-old boy with acute myelogenous leukemia that had been diagnosed two months earlier presented to a hospital with fever and leg pain.

15. 27-year-old man was admitted to the emergency department because of respiratory failure.

17. 20-year-old man was admitted to the hospital with a one-day history of fever and acute, painful symmetric polyarthritis

18. 80-year-old woman presented with a three-day history of passage of bright red blood from the rectum.

19. 35-year-old woman presented with a three-day history of sore throat, painful swelling of the neck, fever, rigor, hemoptysis, and dyspnea.

20. 19-year-old man without a history of asthma or allergies presented to the emergency department with difficulty in breathing.