@misc{indiciae2eba55fa07f4, title = {Monitoring disease activity and progression in primary progressive multiple sclerosis using MRI: sub-voxel registration to identify lesion changes and to detect cerebral atrophy.}, author = {Valerie L Stevenson and Stephen M Smith and Paul M Matthews and David H Miller and Alan J Thompson}, year = {2002}, doi = {10.1007/pl00007860}, url = {https://pubmed.ncbi.nlm.nih.gov/11985382/}, note = {Source identifier: 11985382} }