<|begin_of_text|><|start_header_id|>system<|end_header_id|>

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 authors confirm that, for approved reasons, some access restrictions apply to the data underlying the findings. the data consist of proprietary de-identified administrative health claims data from optuminsight, inc. (eden prairie, mn). the database was not directly accessed by the authors. search protocols were defined and analysis conducted by optum insight personnel at the direction of the authors. permission for use of the analytical results and data supporting those results was obtained from louis brooks jr., vice president, data technology and marketing analytics at optuminsight. requests to access the data should be directed to louis.brooks@optum.com.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>