preferred_name: PDGF binds to extracellular matrix proteins (Rattus norvegicus)
preferred_name_lc: pdgf binds to extracellular matrix proteins (rattus norvegicus)
label: PDGF binds to extracellular matrix proteins (Rattus norvegicus)
label_lc: pdgf binds to extracellular matrix proteins (rattus norvegicus)