D017324Chemicals & DrugsD03.383.129.578.840.500.462.400D03.633.400.909.500.462.400D04.345.783.500.462.400D23.767.727.462.400Hematoporphyrin Derivativeprns:meshDescriptorUIMeSH DescriptorUIprns:meshSemanticGroupNameMeSH semantic group nameprns:meshTreeNumberMeSH tree numberrdf:typetyperdfs:labellabelConcept