Fisk N M, Chan J, O'Donoghue K
Experimental Fetal Medicine Group, Institute of Reproductive and Developmental Biology, Division of Paediatrics Obstetrics and Gynaecology, Imperial College London (Hammersmith Campus) Centre for Fetal Care, Queen Charlotte's and Chelsea Hospital, UK.
Ann Acad Med Singap. 2003 Sep;32(5 Suppl):S8-10.