<|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. all data are only available upon request to the senior author, legal guardian of the data. this option follows the local laws and ethical regulations that apply to confidentiality of clinical/medical data, even when name of the patients are not displayed in the file (they are represented by codes). requests for the data may be sent to dr. claudio gil s. araújo(cgaraujo@iis.com.br).<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>