<|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 authors confirm that, for approved reasons, some access restrictions apply to the data underlying the findings. due to legal reasons, the data are not publicly available but are available upon request from the principal investigators, dr. sanjay kinra md, phd (pediatrics, epidemiology), london school of hygiene and tropical medicine, london, united kingdom sanjay.kinra@lshtm.ac.uk, and dr. sutapa agarwal phd, public health foundation of india, sutapa.agrawal@phfi.org.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>