One or more pharmaceutical consultants are present in Chattanooga. These are professionals who work with pharmaceutical companies to streamline and help in the process of identifying pharmalogically active agents, run them through trials, get certified and be produced for commercial consumption. This can be an extremely long, tedious process, with many intervening steps. Some of the services a consultant (who is usually associated with a consultancy firm) can provide include designing clinical trial procedures, writing medical reviews, reviewing statistical analysis plans, generating safety analysis plans, writing reports for completed clinical studies, and writing and/or editing of PSUR, IND, and NDA Annual Reports. The consultant charges a fee for his expert services. This enables the pharmaceutical company to concentrate on the clinical aspects of drug designing and testing.