“…We identified 44 instruments used in cleft lip and palate studies. After 15 ad hoc questionnaires, 7,19-26 eight generic instruments, 6,10,27-30 11 psychiatric instruments, 8,12,[31][32][33][34][35][36] and one non-English language questionnaire 37 were excluded, nine cleft lip and palate relevant measures remained. Of these, four were never validated in the cleft population.…”