Texas County Retrospective Immunization School Survey (TCRISS) - Region 7 There are no current documents. Book traversal links for Texas County Retrospective Immunization School Survey (TCRISS) - Region 7 ‹ Texas County Retrospective Immunization School Survey (TCRISS) - Region 6/5S Texas County Retrospective Immunization School Survey (TCRISS) - Region 8 ›