<|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 data is part of the zambia national quality assurance program on hiv testing and therefore is owned by the ministry of health. data can be accessed by written request addressed to the permanent secretary, ministry of health, ndeke house, p.o. box 30205, lusaka, zambia; email: ps@moh.gov.zm. the letter should be for the attention of dr mwaka monze, phd, head of virology laboratory, university teaching hospital, lusaka, zambia; email: mmonze@uthlabs.org.zm.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>