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a Nucleotide positions (Ϫ16000) between nt 16090 and 16375, different from the Cambridge Reference Sequence (Anderson et al. 1981). Mutations are transitions (T↔C, A↔G), unless the base change is specified explicitly.

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Codon 790/791 mutations had diverse penetrance. Whereas prophylactic thyroidectomy in children is a justifiable approach for codon 790 mutation carriers, the indication for thyroidectomy should depend on the clinical course of codon 791 carriers.

Elective preterm delivery appears to be an effective method for the management of gastroschisis, and a method whose advantages thus far have outweighed the possible complications due to prematurity.