schema:stage leaf node

@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix schema: <https://schema.org/> .

schema:stage a rdf:Property ;
    rdfs:label "stage" ;
    rdfs:comment "The stage of the condition, if applicable." ;
    schema:domainIncludes schema:MedicalCondition ;
    schema:isPartOf <https://health-lifesci.schema.org> ;
    schema:rangeIncludes schema:MedicalConditionStage .