<|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: data cannot be made publicly available for ethical reasons as the data are patient data. the data are available to interested researchers upon request to the corresponding author, pending ethical approval.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>