@techreport{CARRE:D.3.4,
  AUTHOR = {Enjie Liu and George Gkotsis and Hui Wei and Xiangrong Zhang and Nick Portokallidis and George Drosatos},
  title = {D.3.4. Aggregators for Medical Scientific \& Educational Data},
  institution  = {CARRE Project (\url{https://www.carre-project.eu}), European Union 7th Framework Programme},
  MONTH = {Jan.},
  YEAR = {2015},
  pages={1-47},
  url = {https://www.carre-project.eu/download/software/CARRE_D.3.4_Aggregators_MedicalEvidence.pdf},
  NOTE = {[EC accepted]}
}