1. Institute for Mental Health, School of Psychology, University of Birmingham, Birmingham B15 2TT, UK
2. Coventry and Warwickshire Partnership NHS Trust, Coventry CV6 6NY, UK
3. Division of Psychological Medicine and Clinical Neuroscience, Cardiff University, Cardiff CF24 4HQ, UK
4. Action on Postpartum Psychosis, Swansea SA3 9BT, UK
5. Birmingham Women’s and Children’s NHS Foundation Trust, Birmingham B4 6NH, UK