<|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, for approved reasons, some access restrictions apply to the data underlying the findings. the data used as part of this study were taken from a large emr-based central database of a private health fund in israel. because these aggregated data are comprised of confidential patient data and confidential commercial data on healthcare utilization, they cannot be made publicly available. the data have been aggregated and de-identified for analysis, and are available upon request in this form. to request access to the data, please contact prof. ran balicer at rbalicer@clalit.org.il or +972-3-692-3686. an additional contact responsible for data security and confidentiality is itzik kochav, who can be contacted at kochav@clalit.org.il or +972-3-607-8939.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>