1. Departamento de Zoologia, Instituto de Biociências, Universidade de São Paulo, Rua Matão, Trav. 14, 101, São Paulo 05508-090, Brazil
2. Department of Gastroenterology and Hepatology, University Medical Centre Groningen, Postbus 30.001, Groningen 9700 RB, The Netherlands
3. Faculty of Life Sciences and Medicine, King’s College London, 150 Stamford Street, London SE1 9NH, UK
4. Department of Life Sciences, Natural History Museum, Cromwell Road, London SW7 5BD, UK
5. ¶Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, Av. Prof. Lineu Prestes, 580, B16, São Paulo 05508-000, Brazil