Absorption from the pericardium.
D000818:Animals; D005110:Extracellular Space; D008196:Lymph / Q000032:analysis; D008220:Lymphography; D008854:Microscopy, Electron; D010496:Pericardium / Q000502:physiology*; D010544:Peroxidases / Q000378:metabolism; D051381:Rats; D013911:Thorium Dioxide / Q000378:metabolism
D013911:Thorium Dioxide; D010544:Peroxidases