Holt R I, Powrie J K, Sönksen P H
Department of Medicine, Guy's, King's & St Thomas' School of Medicine, St Thomas' Hospital, 4th floor North Wing, Lambeth Palace Road, London SE1 7EH, UK.
J R Soc Med. 2000 Dec;93(12):636-8. doi: 10.1177/014107680009301208.