Nilai Rasio Neutrofil-Limfosit (RNL) Darah dan Kadar Protein C-Reaktif (CRP) Pasien Penyakit Paru Obstruktif Kronik (PPOK) pada Kondisi Eksaserbasi dan Stabil di Rumah Sakit Persahabatan = Neutrophyl–Lymphocyte Ratio (NLR) and C–Reactive Protein (CRP) in Chronic Obstructive Pulmonary Disease (COPD) Patients during Exacerbation and Stable in Persahabatan Hospital Jakarta Indonesia