other conditions can also cause a similar immune response in the spinal fluid. In addition, roughly 5% to 10% of people with confirmed MS don’t show any abnormalities in their spinal tap results.

Multilevel decompression exhibited comparable postoperative outcomes with that of single-level decompression in patients with lumbar spinal stenosis.

The search in Medline and Embase, described as step one, yielded, after excluding duplicates, 170 publications. After reading title and abstract 103 papers were excluded. For the remaining 67 ...