Current Therapeutic Research, Clinical and Experimental
Background. Antinuclear antibodies (ANA) are among the most commonly used tests in autoimmune disease but are frequently positive in healthy individuals, with uncertain significanc
Current Therapeutic Research, Clinical and Experimental
Observational cohort study with a U-shaped association and identified threshold effect, but the authors explicitly state causality cannot be inferred and acknowledge the need for further studies to establish causality.