<|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 used in this study will be made available upon request because we did not have any approval from ethics committee to make the data publicly available. the pregnant mothers recruited for this study did not give consent to make their data and signals available in the public domain. however, the following persons can be contacted to obtain the data under a confidentiality agreement: dr ahsan khandoker (ahsan.khandoker@kustar.ac.ae) and dr yoshitaka kimura (ykimura@med.tohoku.ac.jp).<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>