1. Alpert, J. L., Peterson, O. L., and Colton, T. (1968). Tonsillectomy and adenoidectomy.Lancet. 1, 1149.
2. Bakwin, H. (1958). The tonsil-adenoidectomy enigma.J. Pediat. 52, 339.
3. Box, Q T., Cleveland, R. T., and Willard, C. Y. (1961). Bacterial flora of the upper respiratory tract in infants and children.Amer. J. Dis. Child. 102, 293.
4. Chanock, R. M., Mufson, M.A., and Johnson, K. M. (1965). Comparative biology and ecology of human virus and mycoplasma antigens.Progr. med. Virology,75, 208.
5. Chanock, R. M., Parrot, R. H., Johnson, K. M. (1963). Myxoviruses: Para influenzae.Amer. Rev. resp. Dis 88, Suppl., 152.