<|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: all relevant data are within the paper and available upon request to the authors due to the presence of identifying patient information. please contact the corresponding author for access to underlying data.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>