Archived Comments for:
Effectiveness of the Strengthening Families Programme 10–14 in Poland for the prevention of alcohol and drug misuse: protocol for a randomized controlled trial
The original paper states a 1:1 allocation ratio between intervention and control arms, which is incorrect. The planned allocation ratio used in the trial was 2:1 intervention:control.
The editorial office have advised that this technical correction is posted as a comment.
Erratum: allocation ratio
13 February 2014
The original paper states a 1:1 allocation ratio between intervention and control arms, which is incorrect. The planned allocation ratio used in the trial was 2:1 intervention:control.
The editorial office have advised that this technical correction is posted as a comment.
Competing interests
As stated in the published paper.