PLoS ONE, Vol 14, Iss 5, p e0216222 (2019) PloS one, vol 14, iss 5 PLoS One (online), 14(5):e0216222. Public Library of Science PLoS ONE PLoS ONE, 14(5). PUBLIC LIBRARY SCIENCE Ward-Caviness, C K, S. de Vries, P, Davey Smith, G, Hartwig, F, Bowden, J, Hemani, G & et al. 2019, ' Mendelian randomization evaluation of causal effects of fibrinogen on incident coronary heart disease ', PLoS ONE, vol. 14, no. 5, e0216222 . https://doi.org/10.1371/journal.pone.0216222