Cvetkovski, B.; Kurtz, R. C. Gastrointestinal Endoscopy (1999)
Cvetkovski, B.; Gerdes, H.; Kurtz, R. C. Gastrointestinal Endoscopy (1999)
Cvetkovski, B.; Gerdes, H.; Kurtz, R. C. Gastrointestinal Endoscopy (1998)
Rosenberg, A. B.; Cvetkovski, B.; Kurtz, R. C.; Bains, M.; Gerdes, H. Gastrointestinal Endoscopy (1998)
Cvetkovski, B.; Markowitz, A. J.; Gerdes, H. Gastrointestinal Endoscopy (1997)