1. Laparoscopic cholecystectomy: a review of 12,397 patients;Scott;Surg Laparosc Endosc,1992
2. Laparoscopic guided cholecystectomy with electrocautery dissection;Zucker,1991
3. A system for the measurement of FRC in mechanically ventilated patients;Rozenberg,1992
4. Measurement of pain;Huskisson;Lancet,1974
5. Doppler ultrasound in the diagnosis of venous thrombosis;Hodgson,1989