Hubungan antara Obesitas dengan Lama Rawat dan Kejadian Infeksi Nosokomial pada Pasien Kritis di Instalasi Rawat Intensif RSUPN Dr Cipto Mangunkusumo = Association between Obesity with Length of Stay and Incidence of Nosocomial Infection in Critically Ill Patients in Intensive Care Unit of Dr Cipto Mangunkusumo Hospital