%0 Journal Article %K epidemiology %K Healthcare Disparities %K Primary health care %K public health %B BMJ Med %D 2024 %G eng %M 38361663 %P e000474 %R 10.1136/bmjmed-2022-000474 %T Effect of timeframes to define long term conditions and sociodemographic factors on prevalence of multimorbidity using disease code frequency in primary care electronic health records: retrospective study %V 3 %2 PMC10868275 %7 2024/02/16 %@ 2754-0413