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2. Spindle imaging: a new marker for optimal timing of ICSI?;Cohen;Hum Reprod,2004
3. Assisted hatching on assisted conception (IVF and ICSI);Das;Cochrane Database Syst Rev,2009
4. Elective single day 3 embryo transfer halves the twinning rate without decrease in the ongoing pregnancy rate of an IVF/ICSI programme;Gerris;Hum Reprod,2002
5. Cleavage stage versus blastocyst stage embryo transfer in assisted reproductive technology;Glujovsky;Cochrane Database Syst Rev,2012