1. Endoscopic ultrasonography-Technique of examination and preliminary results in gastroenterology;Bolondi,1983
2. Staging of gastric cancer by means of endoscopic ultrasonography;Caletti;Gut,1983
3. Anatomical aspects in ultrasonic endoscopy for the stomach;Caletti;Scand. J. Gastroenterol.,1984
4. Ultrasonic endoscopy—The gastrointestinal wall;Caletti;Scand. J. Gastroenterol.,1984
5. Ultrasonic physics for the physician—a brief review;Carlsen;J. Clin. Ultrasound,1975