Sibert J R, Mott A, Rolfe K, James R, Evans R, Kemp A, Dunstan F D
Department of Child Health, University of Wales College of Medicine, Academic Centre, Llandough Hospital, Penarth, Vale of Glamorgan CF64 2XX.
BMJ. 1999 Jun 12;318(7198):1595. doi: 10.1136/bmj.318.7198.1595.