<|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 HIV and TB data used in this study are available from NASCOP (P.O. Box 19361-00202, Nairobi-Kenya; telephone: +254-775597297; info@nascop.or.ke; https://dwh.nascop.org/) and NLTP (P.O. Box 20781-00202, Nairobi-Kenya; telephone: +254-773977440; info@nltp.co.ke; http://pms.dltld.or.ke/). Interested researchers may contact Dr. Catherine Ngugi (head@nascop.or.ke) for the HIV data and Dr. Elizabeth Onyango (eonyango@nltp.co.ke) for the TB data. The county population estimates for the period 2012-2017 are available from the Keya National Bureau of Statistics (P.O. Box 30266-00100, Nairobi-Kenya; telephone: +254-20-317583; www.knbs.or.ke).<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>