REFERENCES
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- Moore, K. L. and Barr, M. L.: Smears from the oral mucosa in the detection of chromosomal sex. Lancet 2: 57 (July) 1955.
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- Davidson, W. M. and Smith, D. R.: A morphological sex difference in the polymorphonuclear leucocytes. Brit. M. J. 2: 6 (July) 1954.