<|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: our dataset is not available on request because of a legal restriction. the hospital episode statistics (hes) is the main dataset used in our analyses. it is held by the health and social care information centre (hscic). hscic handles requests for de-identified data and has a legal responsibility to ensure there is an appropriate legal basis to permit the release and subsequent processing of data, that all necessary approvals are in place, and that organisations have appropriate arrangements and safeguards for secure data handling. the hscic approved the release of the hospital episode statistics (hes) (http://www.hscic.gov.uk/hes) data to the university of york (data re-use agreements ru115; ru536; ru750). under these dsas, the datasets were released on condition that they were not shared with any third party. details of how to apply for individual-level hes data are available here: http://www.hscic.gov.uk/dars; https://dataaccessrequest.hscic.gov.uk/. the remaining datasets used to generate covariates for our analyses are freely available on the web.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>