<|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 available from the ontario pancreas cancer study and ontario cancer risk factor study; however access restrictions (data transfer agreement required by cancer care ontario, and reb approval required by uoft reb) apply and authors steven gallinger and michelle cotterchio may be contacted for any requests at steven.gallinger@uhn.ca and michelle.cotterchio@cancercare.on.ca.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>