RT Journal Article SR Electronic T1 Monoamniotic twin pregnancy: a hazardous fetal life JF Archives of Disease in Childhood - Fetal and Neonatal Edition JO Arch Dis Child Fetal Neonatal Ed FD BMJ Publishing Group Ltd and Royal College of Paediatrics and Child Health SP F479 OP F479 DO 10.1136/adc.2003.039032 VO 89 IS 6 A1 C Krüger A1 K-D Jaspers YR 2004 UL http://fn.bmj.com/content/89/6/F479.abstract AB