<|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: due to ethical and confidentiality restrictions imposed by shinjuku public health center (phc) on disclosure of data including personal and sensitive information, aggregated data sets can be made available only upon request and with permission of shinjuku phc. all interested researchers may contact kiyohiko izumi (kizumi@jata.or.jp) to explore data availability.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>