1. Bolton, Salford and Trafford Mental Health NHS Trust, Prestwich, Manchester, M25 3BL, UK,
2. Department of Neonatal Medicine and Women’s Health, Hope Hospital, Salford, Manchester, M6 8HD, UK
3. Northwest Perinatal Psychiatry Service, Wythenshawe Hospital, Manchester Mental Health and Social Care Trust, Wythenshawe, Manchester, M23 9LT, UK
4. Bolton, Salford and Trafford Mental Health NHS Trust, Prestwich, Manchester, M25 3BL, UK