Operation of medical practices; provision of the infrastructure necessary for the operation of a medical practice, as well as offering services to medical service providers and payers; development, manufacture and marketing of medical-technical products in the human and veterinary fields; holdings; acquisition, encumbrance, sale, rental and management of real estate; acquisition and exploitation of industrial property rights and know-how, copyrights, patents, licenses of all kinds; financing; entering into guarantees and sureties for subsidiaries and third parties.