<|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: original and cleaned data for the nhanes data used in this study is open access and located at the url http://wwwn.cdc.gov/nchs/nhanes/search/nhanes09_10.aspx a stata syntax file containing a template for enabling those to implement this methodology on other data files has been provided as part of the supplementary information. this template also explains the nhanes biomarker variables used for this study and references key nhanes analytical information.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>