Delayed sleep phase syndrome in adolescents: prevalence and correlates in a large population based study

Sivertsen, Børge; Pallesen, Ståle; Stormark, Kjell Morten; Bøe, Tormod; Lundervold, Astri; Hysing, Mari
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http://hdl.handle.net/11250/219461
Date
2013
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BMC Public Health 2013;13   10.1186/1471-2458-13-1163