academic article

• Collaborative Cohort of Cohorts for COVID-19 Research (C4R) Study: Study Design..  American journal of epidemiology.  191:1153-1173. 2022
• Collaborative Cohort of Cohorts for COVID-19 Research (C4R) Study: Study Design..  medRxiv : the preprint server for health sciences.  2021
• Validating laboratory results in a national observational cohort study without field centers: the Reasons for Geographic and Racial Differences in Stroke cohort..  Clinical biochemistry.  47:243-6. 2014