<|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: all data underlying the findings are presented in the manuscript. the full original database is not accessible through a public repository, yet these are available from the swedish esophageal cancer surgery study (sess) at karolinska institutet, whose authors may be contacted at jesper.lagergren@ki.se<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>