Memories of early attachment: the use of PBI as a predictor of outcome in Pesso–Boyden System Psychomotor (PBSP) group therapy, Cognitive–Behavioural Group Therapy (CBGT), Individual Cognitive–Behavioural Therapy (CBT) and Individual Treatment As Usual (TAU) with adult out-patients - Ryum, Truls; Vogel, Patrick A.; Hagen, Roger; Stiles, Tore C. (Clinical Psychology & Psychotherapy, 2008)