Laboratory Corporation of America, founded in 1971, has a national network of 38 primary laboratories and over 1,500 patient service centers along with a network of branches and STAT laboratories. Through its national network of laboratories, the company offers a broad range of clinical laboratory tests that find uses in routine testing, patient diagnosis and in the monitoring/treatment of disease. In addition, it has developed specialty testing operations, such as oncology testing, HIV genotyping and phenotyping, diagnostic genetics and clinical trials. The company processes tests on more than 440,000 patient specimens daily. Its clients include physicians, hospitals, managed care organizations, governmental agencies, employers, pharmaceutical companies and other independent clinical laboratories.