Serum steroid levels associated with oviposition in the green sea turtle (Chelonia mydas), in Atol das Rocas, State of Rio Grande do Norte, Brazil - Guimarães, Marcelo Alcindo de Barros Vaz; Baptistotte, Cecília; Baldassin, Paula; Werneck, M. R; Grosmann, Alice; Bellini, Cláudio; Oliveira, Cláudio Alvarenga de (Proceedings of the American Association of Zoo Veterinarians, 2005)