<|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: due to restrictions that protect participant privacy, data are available upon request. legal restrictions in form of data guidelines require the central data center to be involved in any handling and distribution of all data. the data will be available upon request to all interested researchers. interested parties may contact the working group medical statistics and it-infrastructure (contact information: birgitt wiese, wiese.birgitt@mh-hannover.de, +49 511 532-4414).<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>