The<unk>  is the<unk>  that long-term attendance at indoor<unk> ted swimming<unk> s by children up to the age of about 6–7 years is a major factor in the rise of asthma in rich countries since the late twentieth century. A narrower version of the<unk> , i.e. that asthma may be induced by<unk>  related compounds from swimming<unk> s, has been stated based on a small numbers of cases at least as early as 1995. An empirically motivated statement of the wider form of the<unk>  is first known to have been published on the basis of tests of the effects of nitrogen trichloride above<unk> ted water on the lung as well as epidemiological evidence by a group of medical researchers led by Alfred Bernard of the Department of Public Health in the Catholic University of Louvain in Brussels, Belgium in 2003. In the epidemiological studies, the association between<unk> ted swimming<unk> s and asthma was found to be more significant than factors such as age, sex, ethnic origin, socioeconomic status, exposure to domestic animals and passive smoking (in a study in Brussels), and independent of altitude, climate, and GDP per capita (in a Europe-wide study of 21 countries).
Pool chlorine hypothesis
BaleDoneen Method
Chemical nomenclature
Shettles method
Bead theory
Next-generation matrix
Agar dilution
Bobath concept