Analisis praktik ners spesialis keperawatan medikal bedah pada gangguan sistem kardiovaskular dengan pendekatan model adaptasi roy di Rumah Sakit Jantung dan pembuluh Darah Harapan Kita, Jakarta = Analysis of medical surgical nursing clinical practise of residency on patients with cardiovacular diseases using roy s adaptation model approach in nasional cardiovascular centre Harapan Kita