The effect of laser and voice feedback devices on basic life support skills improvement: A randomized controlled trial in a manikin model

Before the experiment, we had a basic understanding, followed by group training and data collection, and tested again after march

实验开展前，我们首先完成了基础认知环节，随后进行分组训练与数据采集工作，并于三月后再次开展测试。