‘Internet+’ comprehensive nursing training course in the post-epidemic era—an exploration of the mixed teaching mode: a randomized trial oleh Qing-Ling Wang, Lan-Lan Liu, Cheng-Rui Liu, Qing-Shuang Zhu, Zhi-Ying Ren, Ting-Ting Gang, Chun-Yan Zhou, Qiu-Ping Li, Xi Chen, Bin-Ru Han