<|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 database cannot be made available due to patient and health provider confidentiality. This confidentiality has been upheld by the Human Research Ethics Committee of the University of Cape Town. Data are available upon request. Requests for the data may be sent to the Division of Emergency Medicine, University of Cape Town (EM@UCT.AC.ZA).<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>