@article{Tong16, 
author={T. Tong and Q. Gao and R. Guerrero and C. Ledig and L. Chen and D. Rueckert}, 
journal={IEEE Transactions on Biomedical Engineering}, 
title={A Novel Grading Biomarker for the Prediction of Conversion from Mild Cognitive Impairment to Alzheimer's Disease}, 
year={2016}, 
volume={64}, 
pages={155--165}
}