Mendelian Randomization – what it was, what it is, and what it should become

George Davey Smith is a clinical epidemiologist who has focused on methods for improving
causal inference in studies of disease aetiology and disease prevention. His work has
involved early implementation of ‘negative controls’ in epidemiological studies, the use of
cross-context comparisons, sensitivity analyses, unobtrusive data collection methods and
randomized trials in thought-to-be difficult situations.