<|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: all data is housed at the british columbia centre for excellence in hiv/aids drug treatment program. given that we must protect the identity of drug treatment program participants, we cannot publish our study data. requests for data access may be made to the british columbia centre for excellence in hiv/aids data committee under the director of operations, ms. irene day, at iday@cfenet.ubc.ca.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>