Show 10 5 10 15 20 50 100 250 Sort by year (new to old) Actions Download search results Subscribe to news feed Your filters: cql: author="Nørbo Sørensen, Ditte" or (type any "bookEditor issueEditor" and editor="Nørbo Sørensen, ... Add to list Journal Article A1 Instrumental variables estimation under a structural Cox model Torben Martinussen, Ditte Nørbo Sørensen and Stijn Vansteelandt (UGent) (2019) BIOSTATISTICS. 20(1). p.65-79