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 Evidence: How frequent is CBRC?
• The full extent of CBRC in Europe is not precisely known because many national treatment registries do not record the patient's country of origin; estimated: around 4 to 5%
• USA: 1.2% in 2006 to 2.8% in 2013 (estimated at 4% by ASRM ethics committee 2016, Fert and Ster, 106, 1627- 1633)
• A quarter to 1/3 of ART cycles in India and Japan (Paulson R, 2017, CRBC: what is its significance?, Fert and Ster, 108, 5, pp761-2)
Levine et al, 2017
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 Egg donationand surrogacy: many raised concerns about women’s exploitation
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