Authors: H E de Walle; K M van der Pal; L T de Jong-van den Berg; W Jeeninga; J S Schouten; C M de Rover; S E Buitendijk; M C Cornel Journal: BMJ Date: 1999-07-31
Authors: M Murphy; V Seagroatt; K Hey; M O'Donnell; M Godden; N Jones; B Botting Journal: Arch Dis Child Fetal Neonatal Ed Date: 1996-09 Impact factor: 5.747