<|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: according to the institutional review board of huashan hospital, there are strict ethical restrictions in obtaining data of the present manuscript. therefore, the data cannot be made available in the manuscript, the supplemental files, or a public repository. readers may contact mr. meng-bo hu (e-mail: humengbo@fudan.edu.cn) to request the data.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>