Average life of the erythropoietin molecule in the circulation as evidenced by parabiosis.
D000818:Animals; D004912:Erythrocytes / Q000378:metabolism; D004921:Erythropoietin / Q000097:blood* / Q000378:metabolism; D007501:Iron / Q000378:metabolism; D007503:Iron Isotopes; D010227:Parabiosis; D051381:Rats; D013154:Spleen / Q000378:metabolism
D007503:Iron Isotopes; D004921:Erythropoietin; D007501:Iron