Duration,Year Preterm (Induced),1990 Preterm (Induced),1990 Preterm (Induced),1990 Preterm (Induced),1990 Preterm (Induced),1990 Preterm (Induced),1990 Preterm (Induced),1990 Preterm (Induced),1990 Preterm (Induced),1990 Preterm (Induced),1990 Preterm (Induced),1990 Preterm (Induced),1995 Preterm (Induced),1995 Preterm (Induced),1995 Preterm (Induced),1995 Preterm (Induced),1995 Preterm (Induced),1995 Preterm (Induced),1995 Preterm (Induced),1995 Preterm (Induced),1995 Preterm (Induced),1995 Preterm (Induced),1995 Preterm (Induced),1995 Preterm (Induced),1995 Preterm (Induced),2000 Preterm (Induced),2000 Preterm (Induced),2000 Preterm (Induced),2000 Preterm (Induced),2000 Preterm (Induced),2000 Preterm (Induced),2000 Preterm (Induced),2000 Preterm (Induced),2000 Preterm (Induced),2000 Preterm (Induced),2000 Preterm (Induced),2000 Preterm (Induced),2000 Preterm (Induced),2000 Preterm (Induced),2000 Preterm (Induced),2000 Preterm (Induced),2000 Preterm (Induced),2000 Preterm (Induced),2000 Preterm (without procedures),1990 Preterm (without procedures),1990 Preterm (without procedures),1990 Preterm (without procedures),1990 Preterm (without procedures),1990 Preterm (without procedures),1990 Preterm (without procedures),1990 Preterm (without procedures),1990 Preterm (without procedures),1990 Preterm (without procedures),1990 Preterm (without procedures),1990 Preterm (without procedures),1990 Preterm (without procedures),1990 Preterm (without procedures),1995 Preterm (without procedures),1995 Preterm (without procedures),1995 Preterm (without procedures),1995 Preterm (without procedures),1995 Preterm (without procedures),1995 Preterm (without procedures),1995 Preterm (without procedures),1995 Preterm (without procedures),1995 Preterm (without procedures),1995 Preterm (without procedures),1995 Preterm (without procedures),1995 Preterm (without procedures),1995 Preterm (without procedures),1995 Preterm (without procedures),2000 Preterm (without procedures),2000 Preterm (without procedures),2000 Preterm (without procedures),2000 Preterm (without procedures),2000 Preterm (without procedures),2000 Preterm (without procedures),2000 Preterm (without procedures),2000 Preterm (without procedures),2000 Preterm (without procedures),2000 Preterm (without procedures),2000 Preterm (without procedures),2000 Preterm (without procedures),2000 Preterm (without procedures),2000 Preterm (without procedures),2000 Preterm (without procedures),2000 Preterm (without procedures),2000 Preterm (without procedures),2000 Term or postterm,1990 Term or postterm,1990 Term or postterm,1990 Term or postterm,1990 Term or postterm,1990 Term or postterm,1990 Term or postterm,1990 Term or postterm,1990 Term or postterm,1990 Term or postterm,1990 Term or postterm,1990 Term or postterm,1990 Term or postterm,1990 Term or postterm,1990 Term or postterm,1990 Term or postterm,1990 Term or postterm,1990 Term or postterm,1990 Term or postterm,1990 Term or postterm,1990 Term or postterm,1990 Term or postterm,1990 Term or postterm,1990 Term or postterm,1990 Term or postterm,1990 Term or postterm,1990 Term or postterm,1990 Term or postterm,1995 Term or postterm,1995 Term or postterm,1995 Term or postterm,1995 Term or postterm,1995 Term or postterm,1995 Term or postterm,1995 Term or postterm,1995 Term or postterm,1995 Term or postterm,1995 Term or postterm,1995 Term or postterm,1995 Term or postterm,1995 Term or postterm,1995 Term or postterm,1995 Term or postterm,1995 Term or postterm,1995 Term or postterm,1995 Term or postterm,1995 Term or postterm,1995 Term or postterm,1995 Term or postterm,1995 Term or postterm,1995 Term or postterm,1995 Term or postterm,1995 Term or postterm,1995 Term or postterm,2000 Term or postterm,2000 Term or postterm,2000 Term or postterm,2000 Term or postterm,2000 Term or postterm,2000 Term or postterm,2000 Term or postterm,2000 Term or postterm,2000 Term or postterm,2000 Term or postterm,2000 Term or postterm,2000 Term or postterm,2000 Term or postterm,2000 Term or postterm,2000 Term or postterm,2000 Term or postterm,2000 Term or postterm,2000 Term or postterm,2000 Term or postterm,2000 Term or postterm,2000 Term or postterm,2000 Term or postterm,2000 Term or postterm,2000 Term or postterm,2000 Term or postterm,2000 Term or postterm,2000 Term or postterm,2000 Term or postterm,2000 Term or postterm,2000 Term or postterm,2000 Term or postterm,2000