The constitution entitles Iranians to basic health care, and most receive subsidized prescription drugs and vaccination programs. An extensive network of public clinics offers basic care at low cost, and general and specialty hospitals operated by the Ministry of Health and Medical Education (MOHME) provide higher levels of care. In most large cities, well-to-do persons use private clinics and hospitals that charge high fees. About 73% of all Iranian workers have health care and social security coverage. In 2000, 94% of the population could access local health services, according to the WHO. Access ranged from 86% in rural areas to 100% in urban areas. Between 80% and 94% of the population could access affordable essential medicines in 1999. Since 2009, a new government plan called "the comprehensive insurance plan" provides basic coverage to all Iranians.