Reply to Halberstein et al.
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The authors of the original article, Dr Halberstein et al, have declined to comment but refer the reader to a previous exchange between themselves and this letter’s author: Focus on alternative and Complementary Therapies (vol. 12, No. 4, December 2007, pp. 277–278).
PII: S1047-2797(10)00155-9
doi:10.1016/j.annepidem.2010.05.017
© 2010 Elsevier Inc. All rights reserved.
