Nineteen percent of the patients had suffered a tear in an artery, most often in the carotid (neck) artery, and 17 percent had suffered an aneurysm (a bulge in an artery), most often in the renal (kidney) artery, the study authors reported in a symposium news release.
and analyzed with no less care than studies intended to examine risk-fac-tor associations with cancer. If proper care is not taken, descriptive studies will divert scientific resources, especially public health department resources, away from more productive activities. Descriptive epidemiology studies can also be used to evaluate cancer
research, analytical epidemiologic, n a method of investigation used to establish a disease origin or the existence of an contributory relationship between a cause and a disease. research, convenience sample, n a method of investigation used when measuring an entire population is not possible.nimal research. the use of animals in a careful study of a subject, which may be related to the health or other welfare of animals of the same or other species, including humans. comparative medical research.