00485nas a2200193   4500000000100000000000100001008004100002100001300043700001200056700001400068700001500082700001300097700001600110700001700126245011600143300001100259490000700270022001400277       2016                            d1 aH. Booth1 aO. Khan1 aA. Fildes1 aA. Prevost1 aM. Reddy1 aJ. Charlton1 aM. Gulliford00aChanging Epidemiology of Bariatric Surgery in the UK: Cohort Study Using Primary Care Electronic Health Records  a1900-50 v26  a0960-8923