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You are an expert at identifying data availability statements in scientific text. A data availability statement describes where research data can be found or how it can be accessed.<|eot_id|><|start_header_id|>user<|end_header_id|>

Determine if the following text contains a data availability statement. Answer with 'yes' or 'no'.

Text: the study uses claims data to evaluate drug usage patterns. the claims database (truven health analytics marketscan databases) is proprietary, provided by a third-party vendor, and the authors do not have permission to disseminate this data without vendor approval. the study sponsor has purchased access to the truven marketscan database (on a contract per-project use). access to this data set is available to any other interested parties for a fee set by truven health analytics (http://truvenhealth.com/your-healthcare-focus/analytic-research/marketscan-research-databases).<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>