Jennifer Zeitlin senior researcher, Bradley N Manktelow senior lecturer in medical statistics, Aurelie Piedvache statistician, Marina Cuttini perinatal epidemiologist, Elaine Boyle senior lecturer in neonatal medicine, Arno van Heijst director et al
Zeitlin J, Manktelow B N, Piedvache A, Cuttini M, Boyle E, van Heijst A et al.
Authors’ reply to Page and Rafi
BMJ 2016; 354 :i4671
doi:10.1136/bmj.i4671
