<|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 are available upon request from the 'korea central cancer registry' and 'national health insurance database' due to ethical restrictions. researchers can acquire data through the contact point below with application form. korea central cancer registry (kccr): tel: 82-31-920-2171, e-mail: canreg@ncc.re.kr, url: http://ncc.re.kr/manage/manage03_04.jsp.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>