American Shared Hospital Services operates in the Medical laboratories sector. American Shared Hospital Services (ASHS) provides Gamma Knife stereotactic radiosurgery equipment and radiation therapy and related equipment to 19 medical centers in 17 states, as of March 5, 2010. The Company provides Gamma Knife services through its 81% indirect interest in GK Financing, LLC (GKF). The remaining 19% of GKF is owned by GKV Investments, Inc., a wholly owned United States subsidiary of Elekta AG (Elekta). GKF is a non-exclusive provider of alternative financing services for Elekta Gamma Knife units. During the year ended December 31, 2009, Gamma Knife revenue accounted for 92% of the Company's revenue. The Company provides Image Guided Radiation Therapy (IGRT) and related equipment to one medical center in Massachusetts, which accounted for approximately 8% of the Company's revenue in 2009. In our complete report available for purchase the company is compared to: Psychemedics Corporation, Genelink, Inc. and Cryo-Cell International, Inc..