1. Clinical trials play a vital role in testing and development of new drugs and medical devices.
a. What are clinical trials?
b. Explain the difference between controlled and uncontrolled trials.
c. Why are controls important?
d. What are single and double blinding? How is blinding used in a clinical tri- al?
e. What types of outcomes for patients are measured through the use of clini- cal trials? Name at least four.