The EPSILON study of schizophrenia in five European countries: design and methodology for standardising outcome measures and comparing patterns of care and service costs

Thomas Becker, Martin Knapp, Helle Charlotte Knudsen, Aart Schene, Michele Tansella, José-Luis Vázquez-Barquero, EPSILON Study Group (1999)

British Journal of Psychiatry 175 6 514-521