title: Attempted detection of heterozygotes for maple-syrup-urine disease.
mesh_terms: D000293:Adolescent; D000328:Adult; D002245:Carbon Dioxide / Q000096:biosynthesis; D002247:Carbon Isotopes; D005260:Female; D006579:Heterozygote; D006801:Humans; D007930:Leucine / Q000378:metabolism; D007962:Leukocytes / Q000378:metabolism; D008297:Male; D008375:Maple Syrup Urine Disease / Q000235:genetics* / Q000378:metabolism; D008722:Methods; D008875:Middle Aged; D010375:Pedigree; D010641:Phenotype; D012424:Rural Population; D012737:Sex Factors; D014505:Urban Population
chemical_list: D002247:Carbon Isotopes; D002245:Carbon Dioxide; D007930:Leucine