1. Methods to estimate the comparative effectiveness of clinical strategies that administer the same intervention at different timesHuitfeldt A, Kalager M, Robins JM, Hoff G, Hernan MA.  Curr Epidemiol Reports 2015;2(3):149-61.
  2. Incentives and participation in a medical survey. Gjostein DM, Huitfeldt A, Loberg M, Adami HO, Kalager M, Bretthauer M. Tidsskr Nor Laegeforen. 2016 Jul 5;136(12-13):1082-1087.
  3. Comparative effectiveness research using observational data: Active comparators to emulate target trials with inactive comparatorsHuitfeldt A, Hernan MA, Kalager M, Robins JM.eGEMs (Generating Evidence & Methods to improve patient outcomes): Vol. 4: Iss. 1, Article 20.
  4. Is caviar a risk factor for being a millionaire? Huitfeldt A. BMJ 2016;355:i6536.
  5. Odds ratios are not conditional risk ratios. Huitfeldt A.  Letter to the editor, forthcoming in Journal of Clinical Epidemiology.  January 2017.
  6. The choice of effect measure for binary outcomes: Introducing counterfactual outcome state transition parameters. Huitfeldt A, Goldstein A, Swanson SA.  To appear in Epidemiologic Methods 2018.