<|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: when this work was performed in 2012, the consent documents explicitly limited access to these data to the study team, kemri, cdc, regulatory agencies, and the ethics committees. the authors are unable to make the data available as it would breach the study protocol approved by the kenya medical research institute (kemri) and u.s. centers for disease control and prevention (cdc) research ethics boards. an anonymized and de-identified dataset can be made available upon request by contacting dr. monica parise, deputy director of program and science, at mep0@cdc.gov.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>