D007977Chemicals & DrugsD03.132.577.249.413D03.605.497.429D03.633.400.686.429D04.615.723.795.413Levallorphanprns:meshDescriptorUIMeSH DescriptorUIprns:meshSemanticGroupNameMeSH semantic group nameprns:meshTreeNumberMeSH tree numberrdf:typetyperdfs:labellabelConcept