Analisis praktik residensi keperawatan medikal bedah pada pasien gangguan sistem kardiovaskular dengan pendekatan teori Katharine Kolcaba di Rumah Sakit Jantung dan Pembuluh Darah Harapan Kita Jakarta = Analysis of medical surgical nursing residency on patients with cardiovascular system disorders by implementing Katharine Kolcaba's theory at Harapan Kita Cardiovascular Hospital Jakarta