K Federlin

Production of mitogen‐contamination free alginates with variable ratios of mannuronic acid to guluronic acid by free flow electrophoresis

K Hannig, R. Bretzel, G. Klöck, 1992, Electrophoresis.

Benfotiamine in diabetic polyneuropathy (BENDIP): results of a randomised, double blind, placebo-controlled clinical study.

W Gaus, W. Gaus, R. Bretzel, 2008, Experimental and clinical endocrinology & diabetes : official journal, German Society of Endocrinology [and] German Diabetes Association.

Transplantation of Free and Microencapsulated Islets in Rats: Evidence for the Requirement of An Increased Islet Mass for Transplantation into the Peritoneal Site

R. Bretzel, G. Klöck, U Zimmermann, 1993, The International journal of artificial organs.