<|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. ethical restrictions apply to the patient-level dataset underlying the analyses presented, because of nature of consent forms signed, personnel information contained in the database, and the irb approval. these restrictions prevent the data from being made fully available in a public repository. interested researchers are kindly asked to contact the corresponding author for additional information.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>