<|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: electronic health records, are by definition, considered 'sensitive' data in the uk by the data protection act and cannot be shared via public deposition due to information governance restrictions in place to protect patient confidentiality. the caliber data portal is available for consultation online at http://www.caliberresearch.org/. access to data for external researchers (not affiliated with caliber investigators) is provided within the caliber safe haven environment, which currently requires researchers to be physically based in either ucl (clinical epidemiology group) or the london school of hygiene and tropical medicine (liam smeeth). access to data is only available once approval has been obtained through the individual constituent entities controlling access to the data. the authors list the owners of each data source below: the primary care data may be requested via application to the clinical practice research datalink (www.cprd.com); secondary care data may be requested via application to the hospital episode statistics from the uk health and social care information centre (www.hscic.gov.uk/hesdata); myocardial infarction registry data is available by application to the national institute for cardiovascular outcomes research myocardial ischaemia national audit project (www.ucl.ac.uk/nicor/audits/minap); and mortality data is available by application to the uk office for national statistics (www.ons.gov.uk/ons/index.html). the phenotype algorithms described in this paper are freely available via the caliber website at www.caliberresearch.org.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>