Comparison of the Curative Efficacy of Hemivertebra Resection via the Posterior Approach Assisted With Unilateral and Bilateral Internal Fixation in the Treatment of Congenital Sco... oleh Jun-Ting He, Fu-Yun Liu, Wei-Ming Hu, Jing-Jing Liu, Bing Xia, Xue-Qiang Niu, Xin-Wei Li, Yu-Feng Zhao