<|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: due to ethical restrictions de-identified datasets are available upon request to shv3@pitt.edu. the data may also be requested from the original authors of the studies as listed below. pneumonia dataset  contact michael j. fine at finemj@upmc.edu (fine mj, stone ra, singer de, coley cm, marrie tj, lave jr, et al. processes and outcomes of care for patients with community-acquired pneumonia: results from the pneumonia patient outcomes research team (port) cohort study. archives of internal medicine. 1999;159(9):970-80.) sepsis dataset  contact john a. kellum at kellumja@ccm.upmc.edu (kellum ja, kong l, fink mp, weissfeld la, yealy dm, pinsky mr, et al. understanding the inflammatory cytokine response in pneumonia and sepsis: results of the genetic and inflammatory markers of sepsis (genims) study. arch intern med. 2007;167(15):1655-63.) heart failure dataset  contact donald m. yealy at yealydm@upmc.edu (auble te, hsieh m, gardner w, cooper gf, stone ra, mccausland jb, et al. a prediction rule to identify low-risk patients with heart failure. academic emergency medicine. 2005;12(6):514-21.) hit dataset  contact milos hauskrecht at milos@pitt.edu (hauskrecht m, batal i, valko m, visweswaran s, cooper gf, clermont g. outlier detection for patient monitoring and alerting. j biomed inform. 2013;46(1):47-55.) alzheimers disease dataset  contact eric reiman at eric_reiman@tgen.org (reiman em, webster ja, myers aj, hardy j, dunckley t, zismann vl, et al. gab2 alleles modify alzheimer's risk in apoe epsilon4 carriers. neuron. 2007;54(5):713-20.)<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>