Imthurn, B, J Achermann, E Macas, and Arter Klug. “Preimplantation Diagnosis in Switzerland - Birth of a Healthy Child After Polar Body Biopsy”. Swiss Medical Weekly 134, no. 1718 (May 1, 2004): 254–258. Accessed April 23, 2024. https://smw.ch/index.php/smw/article/view/368.