Which of the following drug approval phases consists of three trials?
A) Phase I
B) Phase II
C) Phase III
D) Phase IV
B) Phase II
B) Phase IIPhase II of drug approval consists of three trials. It is also known as Clinical
Investigation, and is the longest, occurring over 2 to 10 years, 5 years being the average. Clinical
Phase 1 trials occur over several months. Clinical Phase 2 trials occur over several months to 2
years. Clinical Phase 3 trials occur over 1 to 4 years.
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Rectangular wire mesh baskets filled with rocks and placed on the ground as a protective lining are called ____.
a. riprap c. erosion control mats b. gabions d. sod
The ultimate goal of an outbreak investigation is to control existing disease and ____, as well as to find the cause of the problem.
A. vaccinate infected population B. quarantine infected population C. prevent future occurrence D. cure all those infected