Brocklehurst, P; Abalos, E; Addo, V; Sharma, JB; Matthews, J; Oyieke, J; Naz Masood, S; ... CORONIS Trial Collaborative Group, The; + view all Brocklehurst, P; Abalos, E; Addo, V; Sharma, JB; Matthews, J; Oyieke, J; Naz Masood, S; El Sheikh, MA; CORONIS Trial Collaborative Group, The; - view fewer (2007) The CORONIS Trial. International study of caesarean section surgical techniques: A randomised fractional, factorial trial. BMC Pregnancy and Childbirth , 7 , Article 24. 10.1186/1471-2393-7-24.