Hyperbaric oxygen in acute ischaemia.
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Humans↗
Biomedical subjects
Publications and source records attributed to R E Loder.
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Routine pre-operative chest X-rays have been taken for 22 years. There has been recent criticism of this investigation. 1000 such X-rays taken in 1977 are compared with the same number in 1955. It appears now that routine pre-operative chest X-rays are not necessary under 30 years of age but that they are essential over that age.