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A Product Accountability domain was submitted to represent dispensed and returned amounts. Each cartridge had a uniquely assigned number. This unique number was represented in DAREF. Multiple cartridges were dispensed at weekly visits, but each cartridge was tracked. At each weekly visit, all previously dispended cartridges were returned, and new cartridges dispensed. Cartridges were always replaced at the each visit. DADTC are the visit dates when the cartridge was returned or dispensed. Cartridges not used were record as having the full volume returned.
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Since the data in Exposure as collected (EC) would be practically identically to the summarized EX domain, the sponsor did not submit the EC domain. The sponsor unblinded the study before creating the EX domain. The unblinded product name is provided in EXTRT, here a dummy name is used for the tobacco product.
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