<|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 cannot be made publicly available because they were obtained from third parties. summary statistics used in this study are available at: http://www.sph.umich.edu/csg/abecasis/public/lipids2013/ and http://www.ibdgenetics.org/downloads.html. data on sarcoidosis (sarc) can be requested from prof. stefan schreiber (s.schreiber@mucosa.de), department of general internal medicine and popgen biobank, university hospital schleswig-holstein, kiel, germany. data on celiac disease (ced) can be requested from prof. lude franke (lude@cleverfranke.com) and david a van heel (d.vanheel@qmul.ac.uk), blizard institute of cell and molecular science, barts and the london school of medicine and dentistry, queen mary university of london, london, uk. data on psoriasis (psor) can be requested from andre franke (ed.asocum@eknarf.a), institute of clinical molecular biology, christian-albrechts-university, 24105 kiel, germany. data on type 1 diabetes can be requested from prof. patrick concannon (patcon@virginia.edu), department of biochemistry and molecular genetics, university of virginia, charlottesville, virginia, usa.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>