Demographic and evolutionary trajectories of the guarani and kaingang natives of Brazil - Marrero, Andrea R.; Silva Júnior, Wilson Araújo da; Bravi, Cláudio M.; Hutz, Mara H.; Petzl-Erler, Maria L.; Ruiz-Linares, Andres; Salzano, Francisco M.; Bortolini, Maria Cátira (American Journal of Physical Anthropology, 2007)