<|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: due to the centre for addiction and mental healths and the ontario public and catholic school boards institutional research ethics board agreements our data cannot be made available in the manuscript, the supplemental files or a public repository. readers, however, may contact to request the public data file underlying the findings of this study from the centre for addiction and mental health from angela boak (angela.boak@camh.ca) and/or dr. robert mann (robert.mann@camh.ca). full reports of the public data files and the surveys administered can be accessed online: http://www.camh.ca/en/research/news_and_publications/ontario-student-drug-use-and-health-survey/pages/default.aspx.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>