To promote the general health and welfare of Roane County and surrounding areas and all of the citizens thereof by furthering all legitimate methods for the prevention and treatment of disease and the positive promotion of health, both personal and public, including but not limited to the operation of hospitals, nursing schools, nursing homes and medical research facilities; to foster and conduct education in medicine in all its branches and in those adjacent and kindred arts and sciences such as nursing and technical training which contribute to the diagnosis, treatment, care and prevention of disease.