Cancer and fertility preservation: international recommendations from an expert meeting.

In a recent large study conducted in breast cancer patients, only 10 % of women took active steps to reduce their chance of infertility (7 % underwent embryo cryopreservation, 1 % oocyte cryopreservation and 3 % accepted the administration of luteinizing hormone-releasing hormone analogs [LHRHa]); however, an increasing trend over time in the proportion of patients who pursued fertility preservation strategies was observed (from 5 % in 2006 to 15 % in 2012) [ 7 ].

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