<|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 in regards to patient confidentiality, data are available upon request from dr. ys prakash, chair, division of anesthesiology research, 200 1st st sw, rochester, mn 55905, prakash.ys@mayo.edu.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>