Shiyanbola, Olayinka O., Karen B. Farris, Julie M. Urmie, and William R. Doucette. 2009. “Risk Factors of Self-Reported Adverse Drug Events Among Medicare Enrollees before and After Medicare Part D”. Pharmacy Practice 7 (4), 218-27. https://pharmacypractice.org/journal/index.php/pp/article/view/141.