Infeksi luka operasi nosokomial: penentuan factor risiko, kuman penyebab dan cara surveilans serta penentuan pengaruhnya terhadap biaya langsung perawatan rumah sakit, penelitian klinis, mikrobiologis, epidermiologis, dan manajemen pelayanan medis = Nosocomial postoperative wound infection: the determination of the risk factors, pathogenic microbes, surveillance method and the determination of its implication on the direct cost of the hospitalization, clinical, microbiological, epidemiological and medical service management research