Siti Hasna Ulfiah, and Yuly Peristiowati. 2022. “The Analysis of Oxygen Saturation Value D-Dimer Levels and the Neutrophil-Lymphocyte Ratio Toward the Death of Covid-19 Patients With Comorbid at Gambiran Hospital, Kediri”. Journal for Quality in Public Health 6 (1):257-64. https://doi.org/10.30994/jqph.v6i1.421.