Evaluation of chemical tests for heterozygosity by comparison of expected and observed numbers of heterozygotes among unaffected relatives of phenylketonurics.
D000367:Age Factors; D005069:Evaluation Studies as Topic; D005260:Female; D005808:Genes, Recessive; D006579:Heterozygote; D006801:Humans; D008297:Male; D008433:Mathematics; D008722:Methods; D010375:Pedigree; D010661:Phenylketonurias / Q000175:diagnosis / Q000235:genetics* / Q000652:urine