<|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 informed consent was waived from the irb of seoul national university hospital, because the authors stated that there was no risk of the patientsí individual data being exposed. although the patient data was de-identified prior to analysis, individual raw data cannot be made available due to possible ethical issues, and because this issue had never been discussed with the patients. individuals may request processed data from the authors.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>