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Letters to Nature

Nature 217, 742-743 (24 February 1968) | doi:10.1038/217742a0; Received 14 August 1967

Radial Diffusion and Power Function Retention of Alkaline Earth Radio-isotopes in Adult Bone

JOHN H. MARSHALL & CLAUDE ONKELINX

  1. Radiological Physics Division, Argonne National Laboratory, Argonne, Illinois.
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Radial Diffusion and Power Function Retention of Alkaline Earth Radio-isotopes in Adult Bone

THE retention of alkaline earth radioisotopes in skeletal systems can be approximated by the power function1 where b is a fraction between 0.0 and 0.5, t is the time after intravenous injection and epsilon is a short time which for adult dog and man is the order of 1 day. A physiological explanation for this form of retention function is now presented which may be applicable to normal adult bone.