Wei Xu

SEP 8, 2026 · PREPRINT

Distillation as Probability Transport: Routed On-Policy Distillation

arXiv

This is an unrefereed arXiv preprint proposing a novel machine learning method with experimental validation across benchmarks, but lacks peer review and is not a clinical or medical evidence study.

AUG 14, 2026 · JOURNAL ARTICLE

Weight Gain Is Associated with Short-Term FIB-4 Increase and Concurrent Metabolic Change in People with HIV and Metabolic Dysfunction-Associated Steatotic Liver Disease

Viruses

Retrospective cohort study with clear outcome definition and statistically significant associations between weight gain and FIB-4 increase in a defined population, but limited by observational design and surrogate endpoint (FIB-4 rather than fibrosis progression or clinical liver outcomes).

AUG 14, 2026 · JOURNAL ARTICLE

Trends and outcomes of Mycoplasma pneumoniae pneumonia in hospitalized children before, during, and after the coronavirus disease 2019 pandemic: a retrospective study in Northeast China, 2018–2023

Microbiology Spectrum

Retrospective single-centre cohort study describing epidemiological trends and risk factors for adverse outcomes in MPP, without a concurrent control group or intervention, providing descriptive and associational evidence suitable for hypothesis generation.