title: Laboratory contributions to human cytogenetics.
mesh_terms: D002869:Chromosome Aberrations / Q000235:genetics; D025063:Chromosome Disorders; D002875:Chromosomes; D002901:Chromosomes, Human, 13-15; D002902:Chromosomes, Human, 16-18; D002905:Chromosomes, Human, 4-5; D002906:Chromosomes, Human, 6-12 and X; D005826:Genetics, Medical; D006801:Humans; D007753:Laboratories; D012729:Sex Chromosome Aberrations; D014314:Trisomy