Santos, L., Imunodeficiências e infecções recorrentes na infância, Revista Portuguesa de Imunoalergologia (1998), vol.6, nº2, 135.
*Seinfeld, J., Pandis, S., Atmospheric Chemistry and Physics – from air pollution to Climate Change, John Wiley & Sons, New York, 1998.
Schachter, E.N. and Schlesinger, A., The attenuation of exercise: induced bronchospasm by vitamin C, Ann. Allergy (1982) vol. 49: 146 – 151.
Schenker; M.B.; Samet, J.M.; Speizer, F.E., Risk factors for chilhood respiratory diseases: the effect of host factors and home environmental exposures, Am. Rev. Respir. Dis. (1983) vol. 128: 1038 – 1043.
Schrenk, H.; Heimann, H.; Clayton, G.; Gafaer, W. and Nexler, H., Air pollution, Donora Pennsylvania, Epidemiology of the unusual smog episode of October 1948, Public Health Bulletin (1949) vol. 306: 173 – 190.
Schuster, A.; Hofmann, A. and Reinhardt, D., Does pertussis infection induce manifestation of allergy?, Clin. Invest. (1993) vol. 71: 208 – 213.
Schwartz, J. and Weiss, S.T., Relationship between dietary vitamin C intake and pulmonary function in the first National Health and Nutrition Examination Survey (NHANES 1), Am. J. Clin. Nutr (1994) vol. 59: 110 – 114.
Shaw, R.; Woodman; K.; Crane, J.; Moyes, C.; Kennedy, J. and Pearce, N., Risk factors for asthma symptoms in Kawerau children, N. Z. Med. J. (1994) vol. 107: 387 – 391.
Sherman, C.B.; Tosteson, T.D.; Tager, I.B.; Speizer, F.E., Weiss, S.T., Early childhood predictors of asthma, Am. J. Epidemiol. (1990) vol. 132: 83 – 95.
Silverman, M., Asthma and wheezing in young children, NEJM (1995) vol. 332: 181-182.
*Simons, P., Weather, Warner Books, London, 1996.
Skobeloff, E.M.; Spivey, W.H.; McNamara, R.M. and Greenspon, L., Intravenous magnesium sulfate for the treatment of acute asthma in the emergency department, JAMA (1989) vol. 262: 1210 – 1213.
Somerville, S.M.; Rona, R.J.; Chinn, S., Passive smoking and respiratory conditions in primary school children, J. Epidemiol. Community Health (1988) vol. 42: 105 – 110.
Speizer, F.E and Frank, R., The uptake and release of SO2 by the human nose, Arch.Environ.Health (1966) vol. 12: 725 – 728.
Sporik, R.; Chapman, M.D. and Platts-Mills, T.A.E., House dust mite exposure as a cause of asthma, Clinical and Experimental Allergy (1992) vol. 22: 897 – 906.
Stone, J.; Hinks, L.J-; Beasley, R.; Holgate, S.T. and Clayton, B.A., Reduced selenium status of patients with asthma, Clin. Sci. (1989) vol. 77: 495 – 500.
Strachan, D.P., Dump housing and childhood asthma: validation of reporting of symptoms, BMJ (1988) vol. 297: 1223 – 1226.