<|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 freely available as they are subject to secrecy in accordance with the swedish public access to information and secrecy act, but can be made available to researchers upon requests (subject to a review of secrecy). requests for data could be addressed to the head of department of surgery and perioperative sciences, urology and andrology, umeå university, 901 85 umeå, sweden.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>