1. Redundant causation from a sufficient cause perspective Gatto, Nicolle M.; Bawle Campbell, Ulka 2010 Articles Diseases--Risk factorsDiseases--Causes and theories of causationMedical sciencesEpidemiology
2. Extending the sufficient component cause model to describe the Stable Unit Treatment Value Assumption (SUTVA) Campbell, Ulka Bawle; Gatto, Nicolle M.; Schwartz, Sharon B. 2012 Articles Epidemiology
3. Distributional interaction: Interpretational problems when using incidence odds ratios to assess interaction Campbell, Ulka; Gatto, Nicolle M.; Schwartz, Sharon 2005 Articles Epidemiology