Title: Be careful and beware
Product review: Such a book is naturally biased toward favor of the technique. But readers should look up "Shettles Method" on the web and read up on more critical evaluations. For example, "...adherence to these methods may decrease your chances of conception, without improving the odds of having a child of the gender of your choice. Note that caffeine has been linked to miscarriage, and douching has been linked to tubal damage and infertility." and "...in the New England Journal of Medicine, that has shown that 'for practical purposes, the timing of sexual intercourse in relation to ovulation has no influence on the sex of the baby.'"You can also find out the details of the method (such as a simple chart) before investing in the book.
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