Objective:T To investigate cognition and its influence factors on the national ess ential Medicines among of Medical Professionals in Primary Hospitals of Xinjiang, for my area to further promote the use of national essential Medicines and prov ide necessary basis for the formulation of the essential Medicine action plan in lin e with the actual situation of our district. Methods:August2011to August2012c onducted national essential drug system cognition questionnaire for1842Medical P rofessionals in Primary...