title: Mendelian randomisation and causal inference in observational epidemiology.
authors.affiliation: Department of Health Sciences, University of Leicester, Leicester, United Kingdom. nas11@le.ac.uk
authors.forename: Nuala A
authors.initials: NA
authors.lastname: Sheehan
authors.forename: Vanessa
authors.initials: V
authors.lastname: Didelez
authors.forename: Paul R
authors.initials: PR
authors.lastname: Burton
authors.forename: Martin D
authors.initials: MD
authors.lastname: Tobin