1. Laboratory of Biomedical Reproduction; German Primate Centre; Goettingen Germany
2. Gastroenterology und GI Oncology; University Medical Centre; Goettingen Germany
3. Division of Reproductive and Developmental Sciences; Oregon National Primate Research Center; Oregon Health and Science University; Beaverton Oregon
4. Instituto de Ciências da Saúde; Health Sciences Institute; Universidade Paulista; Paulista University; São Paulo - SP Brazil
5. Endocrinology Laboratory; German Primate Centre; Leibniz Institute for Primate Research; Goettingen Germany
6. Department of Gynaecology and Obstetrics; Georg-August-University; Goettingen Germany