title: Speaking fundamental frequency characteristics of five- and six-year-old children with mongolism.
mesh_terms: D000367:Age Factors; D000704:Analysis of Variance; D002648:Child; D002675:Child, Preschool; D004314:Down Syndrome / Q000503:physiopathology*; D005260:Female; D006801:Humans; D008297:Male; D012737:Sex Factors; D013637:Tape Recording; D014831:Voice