%0 Journal Article
%K Bias
%K Child
%K Cohort Studies
%K *Electronic Health Records
%K Humans
%K Retrospective Studies
%K Time Factors
%K Bias (epidemiology)
%K Electronic Health Records
%K epidemiologic methods
%K Immortal time bias
%K Life expectancy
%K Observational studies
%B BMC Med Res Methodol
%D 2022
%G eng
%M 35350993
%P 86
%R 10.1186/s12874-022-01581-1
%T Immortal time bias for life-long conditions in retrospective observational studies using electronic health records
%V 22
%2 PMC8962148
%7 2022/03/31
%@ 1471-2288