<|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: the authors confirm that all data underlying the findings are fully available without restriction. due to institutional restrictions (camh, public and catholic school boards agreement) 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|>