Early prediction of irreversible brain damage after ischemic stroke at CT
Randomized clinical trial of the effect of open versus laparoscopically assisted colectomy on systemic immunity in patients with colorectal cancer
Characterization of indeterminate (lipid-poor) adrenal masses: use of washout characteristics at contrast-enhanced CT
Randomized study of coagulation and fibrinolysis during and after gasless conventional laparoscopic cholecystectomy
A prospective, randomized, controlled trial of covered expandable metal stents in the palliation of malignant esophageal obstruction of the gastresophageal junction