1 5 0 http://purl.obolibrary.org/obo/OPMI_0004507 clinical trial 'clinical trial' SubClassOf 'investigation' 'clinical trial' SubClassOf http://purl.obolibrary.org/obo/OPMI_0000418 http://purl.obolibrary.org/obo/OPMI_0000418 human subject study 'human subject study' SubClassOf 'investigation' http://purl.obolibrary.org/obo/OPMI_0000417 human patient 'human patient' EquivalentTo 'has role' some 'human patient role' 'human patient' SubClassOf 'has role' some 'human patient role' 'human patient' SubClassOf 'Homo sapiens' http://purl.obolibrary.org/obo/OPMI_0000432 negative diagnosis 'negative diagnosis' SubClassOf 'diagnosis' http://purl.obolibrary.org/obo/OPMI_0000433 presumptive positive diagnosis 'presumptive positive diagnosis' SubClassOf 'diagnosis' http://purl.obolibrary.org/obo/OPMI_0000431 positive diagnosis 'positive diagnosis' SubClassOf 'diagnosis'