Earlier this year, Varian Medical Systems and Siemens Healthcare announced a global strategic partnership to provide advanced diagnostic and therapeutic solutions and services for treating cancer with image-guided radiotherapy and radiosurgery. The collaboration covers the mutual marketing and representation of products for imaging and treatment in the global radiation oncology business, as well as the development of software interfaces between Siemens treatment systems and Varian's ARIA® oncology information system. Siemens Healthcare will be the representative for Varian's equipment and software products for radiotherapy and radiosurgery within its offerings to its healthcare customers. Varian will be the representative for Siemens diagnostic imaging products to radiation oncology clinics initially in most international markets and expanding to North America later in calendar year 2012.