<|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 ethical restrictions imposed by the ethics committee of the faculty of medicine, university of marburg, related to protecting patient confidentiality, all relevant data is available upon request to dr. korhan buyukturkoglu (korhan.buyukturkoglu@mssm.edu).<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>