Abstract
In the article External Counting of 85Sr in Vertebral Fractures by Per-Axel Alffram and Lars Lindberg in the April 1968 issue of The Journal, an error occurred. On page 563 in the second paragraph under the heading Methods, the sentence beginning near the middle of the eighth line should read as follows: The activity was recorded over each of the twelve counting levels and for fractures in the lumbar spine (Fig. 1) the result was expressed as a fraction of the activity recorded over Level Number 8 (roughly corresponding to the seventh thoracic vertebra) and for fractures in the thoracic Spine (Fig. 5) as a fraction at Level Number 2 (roughly corresponding to the fourth lumbar vertebra).

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