RT Journal Article SR Electronic T1 Family-focused treatment improves attenuated psychotic symptoms, but does not differ from brief treatment in negative symptoms and social functioning in ultra high risk patients aged 12–35 years JF Evidence Based Mental Health JO Evid Based Ment Health FD BMJ Publishing Group Ltd, Royal College of Psychiatrists and British Psychological Society SP 59 OP 59 DO 10.1136/eb-2014-101982 VO 18 IS 2 A1 van der Gaag, Mark YR 2015 UL http://ebmh.bmj.com/content/18/2/59.abstract AB