@InProceedings{krithara-EtAl:2016:BioASQ,
  author    = {Krithara, Anastasia  and  Nentidis, Anastasios  and  Paliouras, Georgios  and  Kakadiaris, Ioannis},
  title     = {Results of the 4th edition of BioASQ Challenge},
  booktitle = {Proceedings of the Fourth BioASQ workshop},
  month     = {August},
  year      = {2016},
  address   = {Berlin, Germany},
  publisher = {Association for Computational Linguistics},
  pages     = {1--7},
  url       = {http://anthology.aclweb.org/W16-3101}
}