Many phase I studies now include adaptive study designs which allow changes to the design of the trial as new information is discovered; as is often the case with phase I studies. According to the author, adaptive trial designs have many benefits, including:

Because they are located downstream from turkey on the tigris and euphrates rivers, these two nations are anticipating a reduction in water supply, as a result of 22 dams being built by the southeastern anatolia project. the two nations are a) iraq and iran. b) iraq and syria. c) iran and syria. d) saudi arabia and yemen.