1. Ultrasonic endoscope;DiMagno;Lancet,1980
2. Ultrasonic tomography by means of an ultrasonic fiberendoscope;Strohm;Endoscopy,1980
3. The EUS hardware store: stae of the art technical review of instruments and equipment (with videos);Yusuf;Gastrointest Endosc,2007
4. Physics of ultrasound;Merritt,2005
5. Overview of echoendoscope design and mechanics for interventional endosonography;Mallery,1999