The HELPER programme: HEalthy Living and Prevention of Early Relapse – three exploratory randomised controlled trials of phase-specific interventions in first-episode psychosis oleh Max Marshall, Christine Barrowclough, Richard Drake, Nusrat Husain, Fiona Lobban, Karina Lovell, Alison Wearden, Tim Bradshaw, Christine Day, Mike Fitzsimmons, Rebecca Pedley, Ruth Piccuci, Alicia Picken, Warren Larkin, Barbara Tomenson, Jeff Warburton, Lynsey Gregg