Sangal, R. B. (2012). Evaluating Sleepiness-Related Daytime Function by Querying Wakefulness Inability and Fatigue: Sleepiness-Wakefulness Inability and Fatigue Test (SWIFT). American Academy of Sleep Medicine.
Chicago-tyylinen lähdeviittausSangal, R. Bart. Evaluating Sleepiness-Related Daytime Function By Querying Wakefulness Inability and Fatigue: Sleepiness-Wakefulness Inability and Fatigue Test (SWIFT). American Academy of Sleep Medicine, 2012.
MLA-viiteSangal, R. Bart. Evaluating Sleepiness-Related Daytime Function By Querying Wakefulness Inability and Fatigue: Sleepiness-Wakefulness Inability and Fatigue Test (SWIFT). American Academy of Sleep Medicine, 2012.
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