<|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 ethical restriction, all data are available upon request from the alberta perinatal health program (aphp). requests can be made out to nancy aelicks (nancy.aelicks@albertahealthservices.ca). further information regarding data requests can also be found at http://www.aphp.ca/.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>