Popper KR: The Open Society and Its Enemies, ed. 5. London , Routledge, 1966.
4.
McMichael AJ: Standardized mortality ratios and the 'healthy worker effect': Scratching beneath the surface. J Occup Med1976 ;18:165-168.
5.
Mitchell EA: Increasing prevalence of asthma in children. N Z Med J1983;96:403-404.
6.
Gergen PJ, Weiss KB: The increasing problem of asthma in the United States. Am Rev Respir Dis1992;146:823-824.
7.
Platts-Mills Tae, De Weck AL: Dust mite allergens and asthma: A worldwide problem. J Allergy Clin Immunol1989;83:416-427.
8.
Spieksma Ftm : Domestic mites: Their role in respiratory allergy . Clin Exp Allergy1991;21: 655-660.
9.
Tseng Rym, Li CK, Spinks JA: Particulate air pollution and hospitalization for asthma. Ann Allergy1992;68:425-432.
10.
Weiss KB, Gergen PJ, Wagener DK: Breathing better or wheezing worse? The changing epidemiology of asthma morbidity and mortality. Annu Rev Public Health1993 ;14:491-513.
11.
Lucas A., Brooke OG, Morley R., Cole TJ, Bamford MF: Early diet of preterm infants and development of allergic or atopic disease: Randomised prospective study. BMJ1990;300: 837-840.
12.
Björkstén B. : Risk factors in early childhood for the development of atopic disease. Allergy1994;49:400-407.