Archives of Disease in Childhood · 1963 · 144 citations · 6 references
the same time should be below the maximum of which the child is capable. The test should not produce undue distress. The child is observed during the test and asked to run fast or slowly, or to walk, as indicated by the response to exercise.
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An Instrument for Dynamic Vital Capacity Measurements
Edward A. Gaensler · Science · 1951 · 62 citations