LI Jie; Shenhe District Odontopathy Dispensary; Shenyang 110014; ZHAN De-song; Department of Prosthodontics; College of Stomatology; Chnia Medical University; Shenyang 110002; china;
3
八十年代末，沈河区被确定为辽宁省和沈阳市综合体制改革试点区。
Time end, shenyang river area is decided to be comprehensive system of Liaoning province and Shenyang city to reform pilot area.
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