Effect of Elderberry (Sambucus nigra L.) Extract Supplementation in STZ-Induced Diabetic Rats Fed with a High-Fat Diet oleh Ângelo C. Salvador, Ewelina Król, Virgínia C. Lemos, Sónia A. O. Santos, Fernanda P. M. S. Bento, Carina P. Costa, Adelaide Almeida, Dawid Szczepankiewicz, Bartosz Kulczyński, Zbigniew Krejpcio, Armando J. D. Silvestre, Sílvia M. Rocha