%K Causal analysis, Sample size, Power, Meta-analysis, Planning
%O This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
%D 2022
%A TP Morris
%A M van Smeden
%V 142
%I Elsevier BV
%T Causal analyses of existing databases: The importance of understanding what can be achieved with your data before analysis (commentary on Hernán)
%L discovery10134915
%J Journal of Clinical Epidemiology
%P 261-283