00548nas a2200181   4500000000100000000000100001008004100002100002000043700001400063700001600077700001400093700002000107700001200127245019400139300001200333490000700345022001400352       2020                            d1 aP. Rockenschaub1 aV. Nguyen1 aR. Aldridge1 aD. Acosta1 aJ. Garcia-Gomez1 aC. Saez00aData-driven discovery of changes in clinical code usage over time: a case-study on changes in cardiovascular disease recording in two English electronic health records databases (2001-2015)  ae0343960 v10  a2044-6055