1. Biology of Reproduction and Human Fertility Research Group, Centre for Neuroscience and Cell Biology, University of Coimbra, Largo Marquês de Pombal, Coimbra, Portugal.
2. Human Genetics Research Group, IDIBAPS, Faculty of Medicine, University of Barcelona, Barcelona, Spain.
3. Biochemistry and Molecular Genetics Service, Clinic Hospital, Barcelona, Spain.
4. Department of Life Sciences, University of Coimbra, Coimbra, Portugal.