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JNCI Journal of the National Cancer Institute 2001 93(11):873-875; doi:10.1093/jnci/93.11.873
© 2001 by Oxford University Press
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Journal of the National Cancer Institute, Vol. 93, No. 11, 873-875, June 6, 2001
© 2001 Oxford University Press

BRIEF COMMUNICATION

Experimental Confirmation of a Distinctive Diffraction Pattern in Hair From Women With Breast Cancer

Peter Meyer, Veronica J. James

Affiliations of authors: P. Meyer, Department of Dermatology, University of Tuebingen and Human Resources Inc., Tuebingen, Germany; V. J. James, Research School of Chemistry, Australian National University, Canberra.

Correspondence to: Veronica J. James, Ph.D., Research School of Chemistry, Australian National University, Canberra ACT, Australia 0200 (e-mail: vjs@bigpond.com).

Since distinctive changes in the fiber diffraction of hair from women with breast cancer were reported by James et al. (1), several groups (2–4) have reported apparently conflicting results. This brief communication presents, to our knowledge, the first comparison of two double-blind studies using samples from the same patients. The first experiment replicated exactly the procedures by Wilk et al. (5)1 and by James et al. (6)1 and showed distinctive changes in the fiber-diffraction patterns from all patients with breast cancer. The second experiment (3) used a different protocol and did not show these distinctive changes, indicating the need to observe the protocol as described by James et al. (1).



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  		Fig. 1. (a) Diffraction pattern taken from the hair of . . . [Full Text of this Article]

 
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False-Positive Results in Studies of Changes in Fiber Diffraction of Hair From Patients With Breast Cancer May Not Be False
J Natl Cancer Inst, January 15, 2003; 95(2): 170 - 171.
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