Background and aims:Endoscopic surveillance of Barrett’s oesophagus currently relies on multiple random biopsies.This approach is time consuming,has a poor dia
Aims: To compare ultrasonographic (US) predicting factors for conversion of choroidal naevi into melanomas. Methods: 659 consecutive eyes with choroidal naevi w
The permafrost with the highest altitude and largest area in the mid and low latitude is located in the Qing-hai-Tibet Plateau. As most frozen soils contain ic
Background The surgical treatment of intramedullary spinal cord tumor aims at complete removal and minimal postoperative deficit. This study was undertaken to e