<|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: we use publicly available, de-identified data for all of our analyses. the data are available to the public, at no cost, at the following locations: national health interview survey: (http://www.cdc.gov/nchs/nhis/nhis_questionnaires.htm); linked mortality files: (http://www.cdc.gov/nchs/data_access/data_linkage/mortality/nhis_linkage.htm); american community survey: (https://usa.ipums.org/usa/).<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>