<|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 are available from the authority of hiv/aids control (vaac). however, since the government of vietnam issues the law on hiv/aids, all information of hiv-affected people is confidential and can not be shared. requests for data on this study may be submitted to vaac and should go through the review process by the scientific and ethic research committee. the contact people for requesting data use is dr. phan thi thu huong, email huongphanmoh@gmail.com, deputy director in research of the vietnam authority of hiv/aids control, ministry of health, vietnam.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>