0 2 0 http://purl.obolibrary.org/obo/CMO_0002698 urine ketone body level 'urine ketone body level' SubClassOf 'urine measurement' http://purl.obolibrary.org/obo/CMO_0002699 dopaminergic neuron count 'dopaminergic neuron count' SubClassOf 'neuron count'