The Oncology Clinical Domain Team is studying the outcomes of COVID-19 infected patients who also suffer from cancer. There are studies with verifying results in the literature (i.e. smaller cohorts) that can be included in the N3C cohort. Cancer phenotypes encompassing OMOP oncology patients in the N3C Data Enclave are being developed. Also in development is a project plan that aims to identify the cancer subpopulations with increased risk of death or severe complications due to COVID-19.