Primary Prevention of Genetic Disorders and Place of Preimplantation Genetic Diagnosis -- Approaches to Preimplantation Genetic Diagnosis -- Preimplantation Genetic Diagnosis for Single Gene Disorders -- Preimplantation HLA Typing -- Preimplantation Genetic Diagnosis for Chromosomal Disorders -- Clinical Outcomes Following Preimplantation Genetic Diagnosis -- Preimplantation Genetic Diagnosis a…