Charnetski, C.J., Brennan, FX. Jr., Harrison, J.F.(1998): Effect of music and auditory stimuli on secretory immunoglobulin A(IgA), Perceptual and Motor Skills, 87(3 Pt 2): 1163-1170.
Fukui, H.(2001) Music and testosterone secretion. A new hypothesis for the origin and function of music. Annals of the New York Academy of Sciences, 930: 448-451.