Jugessur A, Skare Øivind, Harris JR, Lie RT, Gjessing HK. Using offspring-parent triads to study complex traits: A tutorial based on orofacial clefts. Nor J Epidemiol [Internet]. 2012Apr.16 [cited 2024Nov.21];21(2). Available from: https://www.ntnu.no/ojs/index.php/norepid/article/view/1503