Department of Surgery;
Kırikkale Yuksekihtisas Hospital;
Kirikkale Turkey;
Department of Surgery;
Farabi Hospital;
Karadeniz Thecnical University School of Medicine;
Trabzon;
Turkey;
First Department of Surgery;
Ankara Numune Training and Research Hospital;
Ankara;
Turkey;
Department of Surgery;
Derince Training and Research Hospital;
Kocaeli;
Turkey;
Fifth Department of Surgery;
Ankara Numune Training and Research Hospital;
Ankara;
Turkey;
National Nosocomial Infection Survellance (NNIS); Study on the Efficacy of Nosocomial Infection Control (SENIC); Colorectal Surgery; Validation;