| The importance of early intervention in people with CdLS has become apparent says US medical director Tonie Kline. In a presentation to families at the Essex conference, Dr Kline said that the average IQ level in people with CdLS had improved dramatically over the past 20 years. “Before 1980 the average IQ score was 49. After 1980 it has risen to 63”, she said. “This supports the importance of early intervention.” | 
