## Welcome to the MTA Repository Here you can find our complete list of peer-reviewed MTA publications, downloadable in the **Files** section, below, named **mtapublications.pdf** Many MTA Investigators and Friends of the MTA are also actively working on manuscripts using MTA data. A list of projects also downloadable in the Files section, named **mtainprogress.pdf**. The MTA data are freely and [publicly available][1]. However, many of the original investigators and a large network of colleagues have continued to work collaboratively on MTA data analyses. To avoid duplication of efforts, and to involve interested colleagues with relevant expertise, we encourage all members of the MTA collaboration (Investigators and Friends) to follow the guidelines summarized in "**proposalguide.pdf**" before initiating a new project. This internal document is stored privately on this repository. Access is available upon request (contact Dr. Andrea Howard), or you can receive a copy by email. **If you are visiting this repository as a newcomer to the MTA data**, we encourage you to consult **mtapublications.pdf** and **mtainprogress.pdf** to familiarize yourself with projects that are completed and ongoing. Many MTA investigators and Friends are willing to be contacted to support outside projects, either as consultants or collaborators. We encourage newcomers to reach out to any MTA author whom you feel might bring relevant expertise to your project. [1]: https://nda.nih.gov/edit_collection.html?id=2155