Which of the following intestinal protozoa are considered pathogenic?

A patient tells you that he has been diagnosed with coronary artery disease. You recognize this diagnosis to mean that the patient has:

a. a history of acute myocardial infarction. b. had an operation known as coronary artery bypass grafting. c. a failure of the heart to efficiently pump blood. d. narrowing of the small arteries that supply blood and oxygen to the heart.

The first proprietary hospitals in the United States were established by

a. business corporations b. wealthy industrialists c. physicians d. religious organizations