Authors: John W Yaxley; Geoffrey D Coughlin; Suzanne K Chambers; Stefano Occhipinti; Hema Samaratunga; Leah Zajdlewicz; Nigel Dunglison; Rob Carter; Scott Williams; Diane J Payton; Joanna Perry-Keene; Martin F Lavin; Robert A Gardiner Journal: Lancet Date: 2016-07-26 Impact factor: 79.321