CHANGE IN THE EXPRESSION OF HSPA1A IN NUCLEUS PULPOSUS TISSUE UNDER DIFFERENT STATES OF LUMBAR DISC STRESS AND ITS CLINICAL SIGNIFICANCE

LIU Chang, XIANG Hongfei, WU Xiaolin, DING Wenyuan, LI Xianglin, ZHANG Wei, HUANG Hui, WANG Guanrong, CHEN Bohua, ZHANG Yingze