Human assisted reproductive technology : future trends in laboratory and clinical practice / edited by David K. Gardner, Department of Zoology, University of Melbourne, Australia, Botros R.M.B. Rizk, Division of Reproductive Endocrinology and Infertility, University of South Alabama College of Medicine, and University of South Alabama In Vitro Fertilization Laboratory, Mobile, AL, USA, Tommaso Falcone, Cleveland Clinic Foundation, Cleveland, OH, USA