One of the most effective and valuable principles to promote health in all countries has been adoption of Primary Health Care (PHC) as a fundamental strategy. In September 1978, an international conference was held in Alma-Ata, whose great achievement was declaring PHC as a roadmap for “Health for All” by the year 2000 (HFA 2000). Indeed, as a new approach beyond the traditional system of health care, PHC insisted on justice in the delivery and distribution of services in the health sector (1).