Practice parameter: the usefulness of evoked potentials in identifying clinically silent lesions in patients with suspected multiple sclerosis (an evidence-based review): Report of the Quality Standards Subcommittee of the American Academy of Neurology.

@article{Gronseth2000PracticePT,
  title={Practice parameter: the usefulness of evoked potentials in identifying clinically silent lesions in patients with suspected multiple sclerosis (an evidence-based review): Report of the Quality Standards Subcommittee of the American Academy of Neurology.},
  author={Gary S. Gronseth and Eric J. Ashman},
  journal={Neurology},
  year={2000},
  volume={54 9},
  pages={1720-5}
}
Study selection Study designs of evaluations included in the review No a priori inclusion criteria regarding the study design appears to have been used. However, the studies were graded according to the study design and other methodological characteristics. All included studies were graded as either II or IV: grade II incorporated a prospective design, while grade IV corresponded to expert opinion or case series without controls. The mean duration of follow-up varied from 12 to 36 months.