Genetic counselling.
D002869:Chromosome Aberrations / Q000517:prevention & control; D025063:Chromosome Disorders; D000013:Congenital Abnormalities / Q000517:prevention & control; D003376:Counseling; D005053:Eugenics; D030342:Genetic Diseases, Inborn / Q000517:prevention & control*; D006801:Humans