<|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: ethical restrictions prevent public sharing of data from the rhea pregnancy cohort study, as imposed by the research ethics committee of the rhea cohort study. data can be made available to all interested researchers upon request by contacting the research committee at rhea@med.uoc.gr or the principal investigators of the study (prof. m. kogevinas, kogevinas@creal.cat; dr. l. chatzi, lchatzi@med.uoc.gr).<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>