Original ResearchPublished 12 October 2026Levels of plasma PAD4 and citrullinated vimentin in relation to clinical severity of periodontitis and their exploratory discriminatory performanceWeiwen Hu · Zhijia Xu · Xinyu Li · Xiaoyu Sun · Jiajie TuFrontiers in Cellular and Infection Microbiologydoi 10.3389/fcimb.2026.1949560