| http://www.w3.org/ns/prov#value | - genes detected mutations (Seto et al., 2007); (3) three cases who had not had surgery by the time of the first testing visit; (4) and participants who had intervention, such as speech therapy, between the first and second visits (n=24 cases and 6 controls).RESULTSBecause of frequency-matching, the case and control groups were very similar with respect to sex, age, and ethnicity (see Table 1).
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