<|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: data are restricted for ethical reasons, but requests for available data pending ethical approval from the st. jude children's research hospital institutional ethics committee can be sent via the corresponding author, robert j. ogg, robert.ogg@stjude.org.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>