Objective: The mean platelet volume lymphocyte ratio (MPVLR) and (MPVPR) reflect inflammation more effectively strongly than MPV, lymphocyte, platelet, neutrophil counts separately, we aimed to evaluate the importance of MPVLR MPVPR in COVID-19 patients. Material Methods: Patients with were divided into two groups based on whether their RT-PCR test resulted a positive or negative result. MPVLR,...

This paper considers the problem of speci cation testing in general parametric models and shows that for a wide class of models the hypothesis of correct speci cation is equivalent to a continuum of moment equalities. Using these moment equalities we construct a class of speci cation tests that have correct asymptotic size in general parametric models, including stationary time series models, a...