<|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: public data from the hptn 061 study are available on the atlas web portal maintained by the hptn statistics and data management center (https://atlas.scharp.org/cpas/project/hptn/061/begin.view). these data include overall and site-specific information about enrollment categories, demographics, and health care utilization as captured at the baseline visit and information about retention of enrolled participants over the follow-up period of the study. due to concerns for participant privacy, further data from hptn 061 used for this analysis can be requested by contacting the corresponding author.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>