Xin, Zheng, You Chengming, Zhang Yangjun, and Zhao Linyan. 2022. “The Application of Case Based Leaning Combine With Simulation of Point-Of-Care Ultrasonography in Under-Graduate Medical Students”. British Journal of Healthcare and Medical Research 9 (2):44-51. https://doi.org/10.14738/jbemi.92.11897.