RT Journal Article SR Electronic T1 “Of stupidity or folly”: Thomas Willis's perspective on mental retardation JF Archives of Disease in Childhood JO Arch Dis Child FD BMJ Publishing Group Ltd and Royal College of Paediatrics and Child Health SP 555 OP 557 DO 10.1136/adc.87.6.555 VO 87 IS 6 A1 Williams, A N YR 2002 UL http://adc.bmj.com/content/87/6/555.abstract AB “Mental retardation” is a modern term for an age old problem. The descriptions of paediatric cases contained within the works of Thomas Willis (1621–75) have been increasingly recognised for their insight into seventeenth century child health practices.