Data Citation Index 
This link opens in a new window
On the main search screen, change the dropdown from searching in "All Databases" to "Data Citation Index."
"Data Citation Index provides access to research data from repositories across disciplines and around the world. Through linked content and summary information, this data is displayed within the broader context of the scholarly research, enabling users to gain perspective that is lost when data sets or repositories are viewed in isolation. These connections allow researchers to access an array of data across subjects and regions."