RT Journal Article SR Electronic T1 The Chamberlen family (1560–1728) and obstetric forceps JF Archives of Disease in Childhood - Fetal and Neonatal Edition JO Arch Dis Child Fetal Neonatal Ed FD BMJ Publishing Group Ltd and Royal College of Paediatrics and Child Health SP F232 OP F234 DO 10.1136/fn.81.3.F232 VO 81 IS 3 A1 Dunn, Peter M YR 1999 UL http://fn.bmj.com/content/81/3/F232.abstract AB