Laboratory Corporation of America Holdings is an independent clinical laboratory company. The Company has a national network of 36 primary laboratories and over 1,600 patient service centers along with a network of branches and STAT laboratories (which are laboratories that have the ability to perform certain routine tests quickly and report the results to the physician immediately). Through its national network of laboratories, the Company offers a range of clinical laboratory tests that are used by the medical profession in routine testing, patient diagnosis, and in the monitoring and treatment of disease. In addition, it has developed specialty testing businesses, such as oncology testing, human immunodeficiency virus (HIV) genotyping and phenotyping, diagnostic genetics and clinical trials. In August 2009, the Company completed the acquisition of Monogram Biosciences, Inc.