The SEER database is the authoritative cancer statistical database in the United States, containing clinical information for nearly 34.6% of the American population with malignant tumors. The records
Link to OCHRE database: <a href = 'http://pi.lib.uchicago.edu/1001/org/ochre/e4c589e7-8d57-f2a8-cf08-acb7a9624810'>http://pi.lib.uchicago.edu/1001/org/ochre/e4c589e7-8d57-f2a8-cf08-acb7a9624810
