I am clinical research informaticist working at the Duke Clinical Research Institute. My client is the Surgical Critical Care Initiative (SC2i, https://sc2i.org/ ) and our interest in OHDSI is that we plan to leverage the OMOP CDM as a basis to convert the present REDCap tabular data repository onto a relational model. We have initially found that OMOP largely suitable for the clinical components for the project data repository, semantically. There are some few exceptions and our goal is to engage with this community to determine whether we can contribute these exceptions to your knowledgebase and data model. I recently met Karthik Natarajan who suggested engaging with all of you here. I am looking forward to learning more, meeting you and introducing the SC2i data scientists and other project team members to you and your work.