Everyone would like to receive effective treatment with drugs and procedures that work, that are safe, and that cost as little as possible. The advances in medicine and science are the direct result of new ideas and approaches developed through research. Until a drug or treatment is used with a large number of individuals, it is difficult to asses how effective it really is or what side effects may occur from its use. Through clinical studies, researchers are able to learn which approaches work best. This knowledge translates into better medical management of diseases or conditions.