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  1. GT Definition: This domain captures in vitro data collected by the lab executing the study or received from a provider.  This domain is designed for exchanging sample (entity) level data for the following in vitro tests: Neutral Red Cytotoxity Assay, Bacterial Reverse Mutation Assay, Mammalian Cell Gene Mutation Assay, and Micronucleus Assay.  Other in vitro tests have not yet been modeled in this version of this domain.
  2. Results Definition:
    1. GTSTRESC and the corresponding numeric GTSTRESN should generally be used to represent standardized format of original results.
    2. GTSTAT and GTREASND are Permissible and used to indicate when a test was not completed. In these cases GTSTAT should contain “NOT DONE”; GTORRES, GTSTRESC, and GTSTRESN should be null; and GTREASND should contain the reason for not completing the test.
  3. Other Assumptions:
    1. The discussion in Section 4.5.1.3 concerning TESTS NOT DONE does not apply to this domain.
    2. GTEXCLFL and GTREASEX are Permissible and used to indicate when a test is to be excluded from further analysis. In these cases GTREASEX should contain the reason for exclusion.
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