%P 335-341 %T Letter to the editor: Don't forget survey data: 'healthy cohorts' are 'real-world' relevant if missing data are handled appropriately %O This article is distributed under the terms of the Creative Commons AttributionNonCommercial 4.0 license (http://creativecommons.org/licenses/by-nc/4.0/) which permits adaptation, alteration, reproduction and distribution for non-commercial use, without further permission provided the original work is attributed. The derivative works do not need to be licensed on the same terms. %D 2022 %L discovery10147958 %I BRISTOL UNIV PRESS & POLICY PRESS %N 2 %J Longitudinal and Life Course Studies %V 13 %A Richard J Silverwood %A Alissa Goodman %A George B Ploubidis