Education the PRC still lags behind world standards, with the sole exception of Chinese medicine However, Chinese medical education varies from higher to intermediate-level according to local economic and social conditions. Higher-level Chinese medical education started in 1956 when the colleges of Peking, Shanghai, Guangzhou, and Chengdu were given university status. There are now 32 colleges of higher education with a combined student population of about 30,000. There are 77 intermediate-level schools of Chinese medicine, with again, about 30,000 students who receive the title of Chinese medical healer (醫士) and Chinese druggist (藥士). All students graduating from both levels can practice without having to take any additional national examination. Thus there is now a combined total 600,000 medical workers. Because regular education in shcools cannot meet the full demand for health personnel, there is a1so a ”Chinese medical graduate self-study examination,” which is held by local authorities according to central regulations. Furthermore, because of the differences in levels of education, considerable emphasis is placed on continuing education in Chinese medicine. Now there are ”open universities” and Chinese medical night universities.” Because mainland China is a member of the United Nations and World Health Organization, it also runs acupuncture training centers, which have trained more than 1,200 acupuncturists from 120 countries. In addition, there are progressive provisions for ”integration of Chinese and Western medicine,” by which Western medical doctors who have completed two years of service to enter Chinese medical faculties to China has a total of 57 Chinese medical postgraduate institutes, the most prestigious of which is the China Academy of Traditional Chinese Medicine which employs a staff of 4,500 and trains both master's and Ph.D. students.