Vitamin E content in Brazilian pollen pellets - preliminary study - Oliveira, Karla Cristina Lima Silva de; Teixeira, Érica Weinstein; Alves, M. L. T. M. F.; Moreti, Augusta Carolina de Camargo Carmello; Almeida-Muradian, Ligia Bicudo de (Apimondia International Apicultural Congress, 2005)