<|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. data cannot be made publicly available for ethical reasons, as public availability would compromise patient privacy. readers can contact zhang xinping to request the data by the following ways. correspondence address: no. 13 hangkong road, wuhan, hubei province, 430040 china. email: xpzhang602@163.com telephone: (+86)027-83692332.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>