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Chromosomal studies were carried out in 730 patients at the Dept, of Pediatrics and Genetics,
Hanyang University Hospital, form December 1979 to April 1986.
A statistical assessment was carried out in 244 cases who have chromosomal aberrations.
The following results were obtained:
1) Chromosomal aberrations were observed in 244 cases among 730 cases, so the propotion of
chromosomal aberrations was 33%.
2) Age distribution revealed 53% of chromosomal... |
