<|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: the authors confirm that, for approved reasons, some access restrictions apply to the data underlying the findings. to protect the confidentiality of patients and controls in the study, we are obligated not to put the data in a public repository. however, our data relevant to this manuscript are available upon request. individuals interested in the data can contact ms. fang liu (fliu3@medicine.bsd.uchicago.edu) or ms. diane houdek (dhoudek@medicine.bsd.uchicago.edu).<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>