<|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: the ethics requirements of the committees that approved this study, and the partnership agreement made with school administrators, require that the data be kept by the authors. therefore, all data are available from the corresponding author, dr. javier g. ogembo (javier.ogembo@umassmed.edu), university of massachusetts medical school, for researchers who meet the criteria for access.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>