Mutations in the TSC2 gene : analysis of the complete coding sequence using the protein truncation test ( PTT ) .
mutations in the tsc2 gene : analysis of the complete coding sequence using the protein truncation test ( ptt ) .
O O O B-DNA_domain_or_region I-DNA_domain_or_region O O O O O O O O O B-other_name I-other_name I-other_name O B-other_name O O