One of the Supplementary Information files that accompany this study was inadvertently omitted in the original version of this Article. The link to this Supplementary Information file has now been added to the HTML version of the Article.
Authors: Sumithra Velupillai; Hanna Suominen; Maria Liakata; Angus Roberts; Anoop D Shah; Katherine Morley; David Osborn; Joseph Hayes; Robert Stewart; Johnny Downs; Wendy Chapman; Rina Dutta Journal: J Biomed Inform Date: 2018-10-24 Impact factor: 6.317