ObjectiveWe previously identified the independent predictors of recurrent relapse in neuromyelitis optica spectrum disorder (NMOSD) with anti-aquaporin-4 antibody (AQP4-ab) and designed a nomogram to estimate the 1- and 2-year relapse-free probability. using the Cox proportional hazard (Cox-PH) model. assuming that the risk of relapse had a linear correlation with clinical variables. ... https://thecookiecountesses.shop/product-category/piping-tips-and-tubes/