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Endoscopy|July 1, 1981
Ten years of colonoscopyP Frühmorgen, G Laudage, W Matek
Lasers in Surgery and Medicine|January 1, 1987
Laser therapy of tumor stenoses in the upper gastrointestinal tract: an international inquiryC Ell, L Demling
Zeitschrift Fur Die Gesamte Innere Medizin Und Ihre Grenzgebiete|October 1, 1991
[The laser in gastroenterology]C Ell, L Demling
Gastrointestinal Endoscopy|September 1, 1990
Endoscopic retrograde cannulation of the gallbladder: direct dissolution of gallstonesE C Foerster, W Matek, W Domschke
Arquivos De Gastroenterologia|July 1, 1978
Gastro-intestinal hormones. What remains?L Demling, U Strunz
Deutsche Medizinische Wochenschrift (1946)|August 1, 1975
[Patients' attitudes towards the physician's duty to inform. Results of an inquiry]L Demling, H Flügel
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