A genome screen for linkage of quantitative traits underlying asthma has be
en carried out previously by our group on 80 families sub-selected for disc
ordant phenotypes from a general population sample. The families contained
a total of 203 offspring forming 172 sib-pairs. Genotypic data for at a tot
al of 296 markers were available. This paper describes the ascertainment, p
henotypic data, and genotypic data made available for Genetic Analysis Work
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