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Tables are presented showing estimates of the number of subjects which is required to give an 80% or 90% chance of detecting various differences in forced expiratory volume in one second, forced vital capacity, total lung capacity, transfer factor, and residual volume between the mean of two groups by means of Student's t test.

Type

Journal article

Journal

Thorax

Publication Date

11/1986

Volume

41

Pages

830 - 832

Keywords

Humans, Lung, Lung Diseases, Male, Respiratory Function Tests, Statistics as Topic