The TNF, IL-1, IL-6 and HNP Peritoneal Fluid Concentrations in Premature Infants Treated with Peritoneal Drainage for Intestinal Perforation-Preliminary Study

Iwona Rzewnicka*, Anna Piotrowska, Barbara Antoniak, Jacek Malejczyk, Anna Hyc, Anna Iwan and Andrzej Kamiński