Protocol for a Delphi consensus study to identify priority characteristics of integrated care for individuals with severe mental illness and comorbid physical disorders in Europe. - Touitou-Burckard, Esther; Gondek, Tomasz; Isayeva, Ulker; Ernst Nielsen, René; Taipale, Heidi; Tiihonen, Jari; Boyer, Laurent; Gandré, Coralie (PLoS ONE, 2026)