00443nas a2200145   4500000000100000000000100001008004100002100001400043700001200057700001200069245018400081300001200265490000600277022001400283       2015                            d1 aC. Crooks1 aJ. West1 aT. Card00aA comparison of the recording of comorbidity in primary and secondary care by using the Charlson Index to predict short-term and long-term survival in a routine linked data cohort  ae0079740 v5  a2044-6055