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Table 2 Characteristics of the ectopic pregnancy knowledge base for imaging signs

From: Developing a knowledge base to support the annotation of ultrasound images of ectopic pregnancy

  Object property Axioms (n)
- Ultrasound Sign ® Ectopic Pregnancy <epo:suggests> 169
- Ultrasound Sign ® Anatomical Structure <epo:hasLocation> 239
- Ultrasound Sign ® Technical Element <epo:requires> 356
- PubMed citations <epo:PMID> 77
- Image from reference collection <epo:ImagePath> 98