Noyce, A. J., Kia, D. A., Hemani, G., Nicolas, A., Price, T. R., De Pablo-Fernandez, E., …Wood, N. W. (2017). Estimating the causal influence of body mass index on risk of Parkinson disease: A Mendelian randomisation study. PLOS Medicine, 14(6), https://doi.org/10.1371/journal.pmed.1002314