Comparison of fundamental voice frequency between menopausal women and women at menacme - Mendes-Laureano, J.; Sá, Marcos Felipe Silva de; Ferriani, Rui Alberto; Aguiar-Ricz, Lilian Neto; Valera, F. C. P.; Küpper, D. S.; Romão, Gustavo Salata (Maturitas, 2006)