Investigating the variations in survival rates for very preterm infants in 10 European regions: the MOSAIC birth cohort. - Draper ES; Zeitlin J; Fenton AC; Weber T; Gerrits J; Martens G; Misselwitz B; Breart G; MOSAIC Research Group; Draper, E S; Zeitlin, J; Fenton, A C; et al. (Archives of Disease in Childhood -- Fetal & Neonatal Edition, 2009)