The more subjects the better in research? Pieter J. Hoekstra Editorial 14 September 2012 Pages: 539 - 540
How useful are screening instruments for toddlers to predict outcome at age 4? General development, language skills, and symptom severity in children with a false positive screen for autism spectrum disorder Mieke DereuHerbert RoeyersPetra Warreyn Original Contribution 13 May 2012 Pages: 541 - 551
Individual and peer factors associated with ketamine use among adolescents in Taiwan Kun-Hua LeeYi-Chun YehCheng-Fang Yen Original Contribution 22 June 2012 Pages: 553 - 558
The use of the development and well-being assessment (DAWBA) in clinical practice: a randomized trial Marcel AebiChristine KuhnHans-Christoph Steinhausen Original Contribution 22 June 2012 Pages: 559 - 567
Online or off-line victimisation and psychological well-being: a comparison of sexual-minority and heterosexual youth Gisela PriebeCarl Göran Svedin Original Contribution 08 July 2012 Pages: 569 - 582
Mental health at 5 years among children born extremely preterm: a national population-based study Silje Katrine ElgenKatrine Tyborg LeversenTrond Markestad Original Contribution 30 June 2012 Pages: 583 - 589
Oculogyric crisis: a rare extrapyramidal side effect in the treatment of Tourette syndrome Renata RizzoMariangela GulisanoPaola Valeria Calì Letter to the Editor 13 June 2012 Pages: 591 - 592
Who are we missing? Non-participation in an Internet intervention trial for depression and anxiety in adolescents Willemijn HoekFloor AartsPim Cuijpers Letter to the Editor Open access 27 June 2012 Pages: 593 - 595