School of Nursing Yanbian University Yanji 133000 China;
School of Nursing Yanbian University Yanji 133000 China;
School of Nursing Yanbian University Yanji 133000 China;
School of Nursing Yanbian University Yanji 133000 China;
School of Nursing Yanbian University Yanji 133000 China;
School of Nursing Yanbian University Yanji 133000 China;
WeChat; Problem-based learning; Nursing education; Chinese nursing students; Meta-analysis;