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Maternally transmitted extra ring(21) chromosome in a boy with Down's syndrome

✍ Scribed by Takako Matsubara; Yasuo Nakagome; Nobuaki Ogasawara; Shigehiro Oka; Tsunehiro Yokochi


Publisher
Springer
Year
1982
Tongue
English
Weight
399 KB
Volume
60
Category
Article
ISSN
0340-6717

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## Abstract Ring chromosome 21 syndrome is a rare condition with a well‐characterized phenotype. Affected individuals have recognizable dysmorphic features, developmental delays, growth retardation, and a predisposition for congenital malformations involving the neurologic, craniofacial, digestive,