<|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. data are available upon request because of legal restriction. any data request must be submitted for approval to the nephrotest study steering committee. the name of the individual that readers may contact to request the data is b. stengel.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>