Fig. 1From: Identification of missing hierarchical relations in the vaccine ontology using acquired term pairsValid missing is-a suggestion between concepts VO:0000961 and VO:0001220. A missing is-a relation identified between the concepts “live attenuated infectious bursal disease virus vaccine” (VO:0000961) and “live attenuated viral vaccine” (VO:0001220) was confirmed as valid by the domain expertBack to article page