Authors: Katherine Morton; Sarah Voss; Joy Adamson; Helen Baxter; Karen Bloor; Janet Brandling; Sean Cowlishaw; Tim Doran; Andrew Gibson; Nils Gutacker; Dan Liu; Sarah Purdy; Paul Roy; Christopher Salisbury; Arabella Scantlebury; Anu Vaittinen; Rose Watson; Jonathan Richard Benger Journal: BMJ Open Date: 2018-10-03 Impact factor: 2.692