1. American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA.
2. Department of Microscopy, Laboratory of Cell Biology, Institute of Biomedical Sciences Abel Salazar and Unit for Multidisciplinary Research in Biomedicine, University of Porto, Porto, Portugal.
3. Center of Excellence in Genomic Medicine Research, King Abdulaziz University, Jeddah, Saudi Arabia.
4. Discipline of Pathology, School of Medical Sciences, Sydney University, Sydney, Australia.