@InProceedings{nentidis-EtAl:2018:BioASQ,
  author    = {Nentidis, Anastasios  and  Krithara, Anastasia  and  Bougiatiotis, Konstantinos  and  Paliouras, Georgios  and  Kakadiaris, Ioannis},
  title     = {Results of the sixth edition of the BioASQ Challenge},
  booktitle = {Proceedings of the 6th BioASQ Workshop A challenge on large-scale biomedical semantic indexing and question answering},
  month     = {November},
  year      = {2018},
  address   = {Brussels, Belgium},
  publisher = {Association for Computational Linguistics},
  pages     = {1--10},
  abstract  = {This paper presents the results of the sixth edition},
  url       = {http://www.aclweb.org/anthology/W18-5301}
}