Fig. 1From: Developing a predictive nomogram for colposcopists: a retrospective, multicenter study of cervical precancer identification in ChinaFlowchart for the development and validation of predictive model. (HSIL + cases included high-grade squamous intraepithelial lesion (HSIL) and invasive cancer. <HSIL controls included normal and low-grade squamous intraepithelial lesion (LSIL))Back to article page