Zinkl, J G The erythrocyte life span in the American opossum (Didelphis marsupialis Virginiana). [electronic resource] - Laboratory animal science Jun 1974 - 500-4 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0023-6764 Subjects--Topical Terms: AnimalsCarbon RadioisotopesErythrocyte CountErythrocytes--physiologyFemaleGlycineHematocritHeme--analysisHemoglobins--analysisIsotope LabelingMaleOpossums--physiologyTime FactorsVirginia