<|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 upon request from the mahidol university office of the committee for research ethics social sciences (office of the committee for research ethics social sciences, faculty of social sciences and humanities, mahidol university phuttamonthon 4 rd., salaya, phuttamonthon district, nakhon pathom 73170. tel.+662-441-9180 fax.+662-441-9181). in order to protect the privacy of study participants, data cannot be deposited to a public repository. while the data has been stripped of all identifiers, for some countries particularly countries with fewer participants and where homosexual activities are criminalized and regularly policed there may be risks to the confidentiality of study participants. for this reason, mahidol university office of the committee for research ethics can be contacted to retrieve data from this study.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>