Influence of anabolic steroid treatment associated to physical exercise in the ultrasonic vocalization of rats - Bittencourt, Maria Fernanda Queiroz Prado; Dong, Karis Ester; Caetano, Ariadiny Lima; Viel, Tania Araujo; Silva, Marta Assumpção de Andrada e; Buck, Hudson Sousa (The Journal of the Acoustical Society of America, 2010)