Proporsi Pemberian Antibiotik Berdasarkan Alur Gyssens Pada Pasien Penyakit Paru Obstruktif Kronik (PPOK) Eksaserbasi Derajat Sedang Dan Berat Yang Dirawat Di RS Persahabatan Pusat Respirasi Nasional = Proportion Of Antibiotic Administration Based On Gyssens Flowchart In Patients With Moderate And Severe Exacerbations Of Chronic Obstructive Pulmonary Disease (COPD) Treated At Persahabatan Hospital National Respiratory Center