Learning to Answer Biomedical Questions: OAQA at BioASQ 4B Zi Yang author Yue Zhou author Eric Nyberg author 2016-08 text Proceedings of the Fourth BioASQ workshop Ioannis A Kakadiaris editor George Paliouras editor Anastasia Krithara editor Association for Computational Linguistics Berlin, Germany conference publication yang-etal-2016-learning 10.18653/v1/W16-3104 https://aclanthology.org/W16-3104/ 2016-08 23 37