<|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 from the southern urals biophysics institute, ozyorsk, chelyabinsk region, 456780, russia. for privacy reasons they are not publically available. any access to the mayak workers cohort must be approved by subi's institutional review board.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>