R Lorenz

[Automatic registration of vegetative regulation data].

R Lorenz, 1969, Zentralblatt fur Neurochirurgie.

High Interobserver Variability in Endosonographic Staging of Upper Gastrointestinal Cancers

R Lorenz, A. Wolf, A. Meining, 2003, Zeitschrift fur Gastroenterologie.

Endoscopic ultrasound in pancreatic tumor diagnosis.

J R Siewert, R Lorenz, J. Siewert, 1991, Gastrointestinal endoscopy.