Skajaa N, Horvath-Puho E, Sundboll J, Adelborg K, Rothman KJ, Sorensen HT. Forty-year seasonality trends in occurrence of myocardial infarction, ischemic stroke, and hemorrhagic stroke. Epidemiology. 2018 Nov;29(6):777-83. doi: 10.1097/EDE.0000000000000892
Desai RJ, Rothman KJ, Bateman BT, Hernandez-Diaz S, Huybrechts KF. A propensity-score-based fine stratification approach for confounding adjustment when exposure is infrequent. Epidemiology. 2017 Mar;28(2):249-57. doi: 10.1097/EDE.0000000000000595
Twiss J, McKenna SP, Graham J, Swetz K, Sloan J, Gomberg-Maitland M. Applying Rasch analysis to evaluate measurement equivalence of different administration formats of the activity limitation scale of the Cambridge Pulmonary Hypertension Outcome Review (CAMPHOR). Health Qual Life Outcomes. 2016 Apr 9;14(1):57. doi: 10.1186/s12955-016-0462-2.
Cima K, Twiss J, Speich R, McKenna SP, Grunig E, Kahler CM, Ehlken N, Treder U, Crawford SR, Huber LC, Ulrich S. The German adaptation of the Cambridge pulmonary hypertension outcome review (CAMPHOR). Health Qual Life Outcomes. 2012 Sep 13;10:110. doi: 10.1186/1477-7525-10-110
Frost L, Johnsen SP, Pedersen L, Husted S, Engholm G, Sorensen HT, Rothman KJ. Seasonal variation in hospital discharge diagnosis of atrial fibrillation: a population-based study. Epidemiology. 2002 Mar;13(2):211-5.