<|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: data from these analyses may be requested from the multicenter aids cohort study executive committee (macs-ec). a summary of requested data and its intended use should be submitted in writing to: lisa jacobson, phd, chair, macs-ec. johns hopkins university, bloomberg school of public health; department of epidemiology; 615 n. wolfe street, e7646; baltimore, md 21205-2179. individual-level macs data are available from dr. wiley (email, dwiley@ucla.edu) after a review of a concept sheet by the macs executive committee. our current material transfer agreement with the macs does not allow us to distribute this dataset. distribution to others must be individually requested from the macs.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>