PT - JOURNAL ARTICLE AU - Helen Williams TI - The normal thymus and how to recognise it AID - 10.1136/adc.2005.087783 DP - 2006 Apr 01 TA - Archives of disease in childhood - Education & practice edition PG - ep25--ep25 VI - 91 IP - 1 4099 - http://ep.bmj.com/content/91/1/ep25.short 4100 - http://ep.bmj.com/content/91/1/ep25.full SO - Arch Dis Child Educ Pract Ed2006 Apr 01; 91