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. 2016 Aug 1;2016(8):CD003680. doi: 10.1002/14651858.CD003680.pub3

ISRCTN88988596.

Methods RCT
Participants Mother‐infant dyads in which the infant is 4 to 9 months of age and the mother is a fluent speaker of German
Interventions Circle of Security versus treatment‐as‐usual
Outcomes Child Behaviour Checklist (CBCL) (parent‐reported)
Notes Trial registration: ISRCTN88988596
The study was completed in 2011. As yet, there are no published results. We contacted the authors for more information and are still awaiting their response