The introduction of fluorescent technique in cytogenetic diagnosis.
D002869:Chromosome Aberrations / Q000175:diagnosis; D025063:Chromosome Disorders; D003582:Cytogenetics; D005260:Female; D005453:Fluorescence; D006801:Humans; D007621:Karyotyping; D008297:Male; D008722:Methods; D012729:Sex Chromosome Aberrations / Q000175:diagnosis