RT Journal Article SR Electronic T1 Association of two tumour necrosis factor gene polymorphisms with the incidence of severe intraventricular haemorrhage in preterm infants JF Journal of Medical Genetics JO J Med Genet FD BMJ Publishing Group Ltd SP 604 OP 608 DO 10.1136/jmg.2004.021378 VO 42 IS 7 A1 A Heep A1 A C Schueller A1 E Kattner A1 M Kroll A1 J Sander A1 M Wisbauer A1 P Bartmann A1 F Stueber YR 2005 UL http://jmg.bmj.com/content/42/7/604.abstract AB