American Academy of Neurology (www.aan.com)

Brain Tumor Center, MGH, Harvard, USA (http://brain.mgh.harvard.edu)

Karolinska Institutet, Clinical Neurosciences (www.ki.se)

Library References - Neurologic Conditions Mayo Clinic & Foundation (MN, USA) (www.mayohealth.org/mayo/library/htm/tocneuro.htm)

Neurology (www.neurology.org)

Neurology, Massachusets General Hospital (MGH) (Harvard, USA) (http://dem0nmac.mgh.harvard.edu)

Neurosurgery: Brain disorders (Tumors, Vascular, etc..) (http://neurosurgeon.com/z-brain.html)

The Walton Centre for Neurology & Neurosurgery (www.wcnn.co.uk)