<|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 available upon request from the corresponding author. as the data set contains anonymous however sensitive information (sexual behaviour) on a rather small sample of a stigmatised population (msm) where data on age and county of residence and country of birth might theoretically make the data traceable. the data will be shared upon request in order to protect participant confidentiality. please contact the first author dr. susanne strömdahl via email susanne.stromdahl@ki.se.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>