Author/Authors :
AC Williams، نويسنده , , JR Sandy، نويسنده , , S Thomas، نويسنده , , D Sell، نويسنده , , JAC Sterne، نويسنده ,
Abstract :
Relation between the number of cases treated and outcome, particularly in low-incidence anomalies, are difficult to identify and rectify. We show clear advantages in speech outcomes for children born with a cleft lip and palate who are operated on by surgeons who do large numbers of these procedures.