<|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 can be obtained by contacting dr. ken farion (farion@cheo.on.ca). policies of the children's hospital of eastern ontario research institute and research ethics board prevent the open-access distribution of patient research data. interested parties will be required to apply and be granted permission for secondary use of the de-identified data by the children's hospital of eastern ontario research ethics board. please contact the reb via their website (www.cheori.org/en/researchethicsboard).<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>