<|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 cannot be made available in supporting information files or in a data repository because of ethical restrictions imposed by the institutional review board (irb) for clinical investigations at the duke university health system (durham, usa), the independent ethical committee of the state research center for preventive medicine, ministry of health and social development of the russian federation (moscow, russia), and the max planck society. the authors confirm that all data underlying the findings described in the manuscript are fully available to interested researchers upon submission of data use agreement and a short description of a scientific project to dr. vladimir m. shkolnikov at: shkolnikov@demogr.mpg.de (http://www.demogr.mpg.de/en/institute/staff_directory_1899/vladimir_m_shkolnikov_105.htm) or to mrs. sigrid gellers-barkmann at: gellers@demogr.mpg.de.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>