Fig. 31-4 Measurement of the diagonal conjugate diameter by the middle finger. The indicated length on the index finger gives the true conjugate, because the index is about 1.5 cm shorter than the middle finger. (After Smout and Jacoby.)
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Fig. 31-4 Measurement of the diagonal conjugate diameter by the middle finger. The indicated length on the index finger gives the true conjugate, because the index is about 1.5 cm shorter than the middle finger. (After Smout and Jacoby.)