title: Effect of 17q21 variants and smoking exposure in early-onset asthma.
mesh_terms: D000293:Adolescent; D000328:Adult; D017668:Age of Onset; D000368:Aged; D001249:Asthma / Q000235:genetics*; D002648:Child; D002886:Chromosomes, Human, Pair 17 / Q000235:genetics*; D004781:Environmental Exposure / Q000009:adverse effects; D005260:Female; D005819:Genetic Markers; D020022:Genetic Predisposition to Disease; D055106:Genome-Wide Association Study; D005838:Genotype; D006801:Humans; D008297:Male; D008875:Middle Aged; D010641:Phenotype; D020641:Polymorphism, Single Nucleotide; D012044:Regression Analysis; D012307:Risk Factors; D014028:Tobacco Smoke Pollution / Q000009:adverse effects*
chemical_list: D005819:Genetic Markers; D014028:Tobacco Smoke Pollution