Harrison, J. (2007). "Polonium-210 as a poison". J. Radiol. Prot.27 (1): 17–40. doi:10.1088/0952-4746/27/1/001. PMID 17341802. Bibcode: 2007JRP....27...17H. “The conclusion is reached that 0.1–0.3 GBq or more absorbed to blood of an adult male is likely to be fatal within 1 month. This corresponds to ingestion of 1–3 GBq or more, assuming 10% absorption to blood”
Harrison, J. (2007). "Polonium-210 as a poison". J. Radiol. Prot.27 (1): 17–40. doi:10.1088/0952-4746/27/1/001. PMID 17341802. Bibcode: 2007JRP....27...17H. “The conclusion is reached that 0.1–0.3 GBq or more absorbed to blood of an adult male is likely to be fatal within 1 month. This corresponds to ingestion of 1–3 GBq or more, assuming 10% absorption to blood”
Harrison, J. (2007). "Polonium-210 as a poison". J. Radiol. Prot.27 (1): 17–40. doi:10.1088/0952-4746/27/1/001. PMID 17341802. Bibcode: 2007JRP....27...17H. “The conclusion is reached that 0.1–0.3 GBq or more absorbed to blood of an adult male is likely to be fatal within 1 month. This corresponds to ingestion of 1–3 GBq or more, assuming 10% absorption to blood”