Multi-angle laser device improves novice learning of C-arm fluoroscopy for lumbar spine surgery. - Zhuang, Yuan-Dong; Li, Rui-Jin; Wu, Jia-Jun; He, Xue-Wei; Zou, Wen-Bin; Xu, Xu-Chu; Lu, Si-Qi; Chen, Chun-Mei (PLoS ONE, 2024)