title: Variations in normal human chromosomes.
mesh_terms: D000704:Analysis of Variance; D002478:Cells, Cultured; D002869:Chromosome Aberrations; D002875:Chromosomes; D005260:Female; D006801:Humans; D066298:In Vitro Techniques; D007621:Karyotyping; D007962:Leukocytes / Q000166:cytology; D008297:Male; D011247:Pregnancy; D013194:Staining and Labeling; D014427:Twins