<|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: due to legal restrictions, data are available upon request. interested researchers may access the data by contacting the data access committee of maternal, fetal and neonatal research center, tehran university of medical sciences (email: mfnhrc@yahoo.com).<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>