Can stable isotope analysis reveal dietary differences among groups with distinct income levels in the city of Piracicaba (southeast region, Brazil)? - Gragnani, Juliana Gonçalez; Garavello, Maria Elisa de Paula Eduardo; Silva, R. J.; Nardoto, Gabriela Bielefeld; Martinelli, Luiz Antonio (Journal of Human Nutrition and Dietetics, 2013)