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  • Nearly 3,000 illustrations, including video clips of neurologic disorders.

  • Every article is reviewed by our esteemed Editorial Board for accuracy and currency.

  • Full spectrum of neurology in 1,200 comprehensive articles.

German physician Albert Ludwig Sigesmund Neisser (1885-1916)

Neisser discovered Neisseria gonorrhoeae in 1879. (Photograph courtesy of the U.S. National Library of Medicine. Photograph restored by Dr. Douglas J Lanska.)

Associated Disorders

  • asplenia
  • deficiency of a terminal complement component (C5-9)
  • deficiency of properdin