<|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 then surveyed what turned out to be a massive literature in order to assess G7 performance with respect to Summit commitments , and the health implications of the policies reflected by those commitments . The literature comprised : quantitative data assembled by organizations including the World Bank , OECD , and several United Nations agencies ; an extensive body of research by civil society organizations ( CSOs ) such as Oxfam and Jubilee Research ; and an expanding research literature on determinants of population health in the developing world . These categories tend to overlap , in particular as the work of key CSO - affiliated researchers is published by '' mainstream '' agencies ( Third World Network , 2001;Pettifor & Greenhill , 2002 ; . We carried out our own calculations and policy evaluations using these data , but did not check on their accuracy beyond the identification of clear inadequacies in the data as published . It must be noted that at least as many questions have been raised about the accuracy of data generated by agencies such as the World Bank and the World Health Organization ( e.g. Musgrove , 2003;Reddy & Pogge , 2003 ) as about the research and policy recommendations of CSOs .<|eot_id|><|start_header_id|>assistant<|end_header_id|>

no<|eot_id|>