title: Situational variability of preschoolers' disfluency: preliminary study.
mesh_terms: D002652:Child Behavior; D002675:Child, Preschool; D005190:Family; D005260:Female; D006801:Humans; D007398:Interpersonal Relations; D007804:Language Development; D008297:Male; D010988:Play and Playthings; D012574:Schools; D013060:Speech; D013064:Speech Disorders; D013637:Tape Recording; D014705:Verbal Behavior