<|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. data on medicare beneficiaries is available at the centers for medicare and medicaid services; detail are at (https://www.cms.gov/research-statistics-data-and-systems/cms-information-technology/accesstodataapplication/index.html). data on providers is taken from the american medical association (ama) masterfile, available from the ama division of survey and data resources. information on accessing this data is available at (http://www.ama-assn.org/ama/pub/about-ama/physician-data-resources/ama-database-licensing.page?).<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>