There is Variability in the Accuracy of Diagnosis Codes Used to Identify COVID-19 Patients. - Jayson S. Marwaha; Elizabeth Eldridge; Sahr Syed; Perry L. Mar; Philip Ballentine; Denis Agniel; Nathan P. Palmer; Sadiqa Mahmood; Gabriel A. Brat (AMIA, 2021)

Topic-to-Topic Modeling for COVID-19 Mortality. - Jeffrey Humpherys; Ahmad Halwani; Barbara E. Jones; Makoto M. Jones; Matthew H. Samore; Sadiqa Mahmood; Dale Sanders (ICHI, 2021)