Nonlinear time-series approaches in characterizing mood stability and mood instability in bipolar disorder

Proc. R. Soc. B279, 916–924 (7 March 2012; published online 17 August 2011) (doi:10.1098/rspb.2011.1246)

On p. 922, the ethics committee acknowledged was incorrect, and should read as follows:

The study was approved by the Oxfordshire REC A ethics committee.