Lian, Q., Zheng, T., Huo, X. et al. Prophylactic antibiotic use during labor and delivery in China: a nationwide, multicenter, hospital-based, cross-sectional study. BMC Med 20, 391 (2022). https://doi.org/10.1186/s12916-022-02577-w 当初是六一的时候(上海刚解封,所以印象深刻)偶然看到PLOS Medic ...