00488nas a2200205   4500000000100000000000100001008004100002100001600043700001500059700001700074700001300091700001300104700001200117700001300129700001300142245009800155300000800253490000700261022001400268       2019                            d1 aD. Metcalfe1 aJ. Masters1 aA. Delmestri1 aA. Judge1 aD. Perry1 aC. Zogg1 aB. Gabbe1 aM. Costa00aCoding algorithms for defining Charlson and Elixhauser co-morbidities in Read-coded databases  a1150 v19  a1471-2288