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Sleep Board Review Test 1

9. Narcolepsy occurs in approximately:

a. 1:200 individuals

b. 1:2000 individuals

c. 1:20000 individuals

d. 1: 100 individuals

e. 1: 1000 individuals

Answer: c. 1:2000 individuals

Reference:

Scammell, TE, Ann Neuro 2003;53:154-166, page 156.

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