D003173Chemicals & DrugsD08.811.277.300.290D12.776.124.486.274.045.290D12.776.124.486.274.050.290Complement C1sprns:meshDescriptorUIMeSH DescriptorUIprns:meshSemanticGroupNameMeSH semantic group nameprns:meshTreeNumberMeSH tree numberrdf:typetyperdfs:labellabelConcept