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Tetrasomy 9p confirmed by GALT.
Balestrazzi P, Croci G, Frassi C, Franchi F, Giovannelli G. Balestrazzi P, et al. Among authors: frassi c. J Med Genet. 1983 Oct;20(5):396-9. doi: 10.1136/jmg.20.5.396. J Med Genet. 1983. PMID: 6644773 Free PMC article.