<|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: all relevant aggregated data are within the paper and its supporting information. due to ethical restrictions, individual data are available upon request and requests for data may be sent to the corresponding author (paola_friedrich@dfci.harvard.edu).<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>