The limitations of carotid sonography: interpretive and technology-related errors
Color duplex sonographic findings in human vertebral arteries during cervical rotation
Clinically suspected pulmonary embolism: is it safe to withhold anticoagulation after a negative spiral CT?
Comparison of pulmonary function and postoperative pain after laparoscopic versus open gastric bypass: a randomized trial.
Is laparoscopic appendectomy safe in pregnant women?
Laparoscopic vs open appendectomy in overweight patients
A prospective randomized comparison of laparoscopic appendectomy with open appendectomy: clinical and economic analyses.