- The Tobacco Product Identifiers and Descriptors example in the Product Design sub-section Module is applicable to ALL studies of tobacco products. Users should review this example first before skipping ahead to other examples.
- The variable PTCAT (Category of Test) in the Product Testing (PT) domain is an expected variable (and therefore should be included). This variable will be necessary to group and differentiate records coming from the many types of tests that are represented in this domain.
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