Distinguishing post-COVID from long-COVID in adults: Development and validation of a biomarker signature using targeted proteomics and machine learning in a cross-sectional observational study - Franziska Meyer; Stephan Traidl; Milad Ameri; Anita Dreher; Nevine Abu-Rashed-Kufs; Jan Vontobel; Matthias Möhrenschlager; Hans-Werner Duchna; Felicia Sandberg; Marie-Charlotte Brüggen (PLoS ONE, 2026)