<|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 original data for this study is held confidential due to the involvement of patient data. it can be obtained upon request from the department of psychiatry and neuroscience, hiroshima university, japan (primary contact: shigeto yamamwaki, phd, md, yamawaki@hiroshima-u.ac.jp).<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>