| (subclass BloodCell SomaticCell) | Mid-level-ontology.kif 10151-10151 | Blood cell is a subclass of somatic cell |
| (subclass BloodCell AnimalAnatomicalStructure) | Mid-level-ontology.kif 10152-10152 | Blood cell is a subclass of animal anatomical structure |
| (subclass RedBloodCell BloodCell) | Mid-level-ontology.kif 10162-10162 | Red blood cell is a subclass of blood cell |
| (subclass Platelet BloodCell) | Mid-level-ontology.kif 10174-10174 | Thrombocyte is a subclass of blood cell |
| (subclass WhiteBloodCell BloodCell) | Mid-level-ontology.kif 10208-10208 | White blood cell is a subclass of blood cell |
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