00545nas a2200181   4500000000100000000000100001008004100002100002100043700001500064700001300079700001500092700001300107700001600120245019500136300001200331490000600343022001400349       2018                            d1 aE. Kontopantelis1 aR. Stevens1 aP. Helms1 aD. Edwards1 aT. Doran1 aD. Ashcroft00aSpatial distribution of clinical computer systems in primary care in England in 2016 and implications for primary care electronic medical record databases: a cross-sectional population study  ae0207380 v8  a2044-6055