Stress and Burnout among medical students in hainan Island, China: A cross-sectional study - Houqian Shan; Zhaoxin Wang; Ling Yuan; Ning Chen; Maorui Yang; Di’er Cheng; Lei Sun; Zaijia Yang; Zhen Zhou; Shengfei Hou; Qingyu Wu; Hongpan Hou; et al. (PLoS ONE, 2025)