1) Everhart, D. L. et al.: Evaluation of dental caries experience and salivary immunoglobulins in whole saliva. J. Dent. Res. 51: 1487-1491, 1972.
2) Chandler, D. C. et al.: Human parotid IgA and periodontal disease. Arch. oral Biol., 19: 733-735, 1974.
3) John B. Jemmott III et al.: Academic stress, power motivation, and decrease in secretion rate of salivary secretory immunogloblin A. The lancet, June 25: 1400-1402, 1983.
4) Williams, R. C. et al.: Inhibition of bacterial adherence by secretory immunoglobulin A; A mechanism of antigen disposal. Science, 117: 697-699, 1972.