PT - JOURNAL ARTICLE AU - E Ruud AU - E Thaulow AU - A Früh AU - H Lindberg AU - S O Lie TI - Unexpected medical coincidences require systematic and careful strategies: an example AID - 10.1136/adc.88.5.435 DP - 2003 May 01 TA - Archives of Disease in Childhood PG - 435--437 VI - 88 IP - 5 4099 - http://adc.bmj.com/content/88/5/435.short 4100 - http://adc.bmj.com/content/88/5/435.full SO - Arch Dis Child2003 May 01; 88 AB - In a cohort of 14 children with identical cardiac xenografts, two boys developed acute myeloid leukaemia 11 and 16 months respectively after the operation. A dedicated working group designed a scheme intending to take care of all aspects of the situation. This article focuses on preferred strategies towards patients, relatives, government, and the media. We did not find any substantial evidence supporting the association between bovine xenografts and two cases of acute myeloid leukaemia.