Making decisions about hormone replacement therapy

I am surprised to see that the authors of this review recommend
giving HRT to women who have temporary ovarian failure as a result of
treatment with gonadotrophin releasing hormone analogues(for example,
women with breast cancer). HRT may well prevent bone loss, but if the GnRH
analogue is being used to suppress ovarian function in women with
oestrogen receptor positive breast cancer then surely the risks are too
great?

Competing interests:  
None declared