<|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: primary-level data are available from german federal statistics office (fso) under the statistics series "destatis, fachserie 13, reihe 7". raw data for the years 19942005 is available only upon request from the fso. the compiled data set used for the study is also available from the authors of the study by emailing to kayvan.bozorgmehr@med.uni-heidelberg.de.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>