%0 Journal Article
%A Morris, TP
%A van Smeden, M
%D 2022
%F discovery:10134915
%I Elsevier BV
%J Journal of Clinical Epidemiology
%K Causal analysis, Sample size, Power, Meta-analysis, Planning
%P 261-283
%T Causal analyses of existing databases: The importance of understanding what can be achieved with your data before analysis (commentary on Hernán)
%U https://discovery.ucl.ac.uk/id/eprint/10134915/
%V 142
%Z This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.