<|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: data of the nis 2011 are available in hcup nationwide inpatient sample (nis). healthcare cost and utilization project (hcup). 2011. agency for healthcare research and quality, rockville, md "www.hcup-us.ahrq.gov/nisoverview.jsp)." data of the brfss 2011 are available in the centers for disease control and prevention (cdc). behavioral risk factor surveillance system survey data. atlanta, georgia: u.s. department of health and human services, centers for disease control and prevention, [2011] "http://www.cdc.gov/brfss/annual_data/annual_2011.htm."<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>