<|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: to protect patients' privacy and follow the regulation of patients' medical data access by chinese government, the ethics committee of guangdong provincial hospital of chinese medicine restricts the access of these data to public. please contact dr. zehuai wen (wenzh@gzucm.edu.cn) to get details.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>