passages.id: split_5_test_2321_passage
passages.type: progene_text
passages.text: The aim of the present study was to compare the effect of 6 weeks ' exposure of the peritoneum in rats to two different PDFs : a standard PDF with a low pH and high level of GDPs ( CAPD 3 : Fresenius Medical Care , Bad Homburg , Germany ) , and a modified PDF with a low level of GDPs and a physiologic pH ( CAPD 3 Balance : Fresenius Medical Care ) .