Authors: John L Campbell; Emily Fletcher; Nicky Britten; Colin Green; Tim Holt; Valerie Lattimer; David A Richards; Suzanne H Richards; Chris Salisbury; Rod S Taylor; Raff Calitri; Vicky Bowyer; Katherine Chaplin; Rebecca Kandiyali; Jamie Murdoch; Linnie Price; Julia Roscoe; Anna Varley; Fiona C Warren Journal: Health Technol Assess Date: 2015-02 Impact factor: 4.014