Common maternal infections during pregnancy and childhood leukaemia in the offspring: Findings from six international birth cohorts

He, J.-R.| Hirst, J.E.| Tikellis, G.| Phillips, G.S.| Ramakrishnan, R.| Paltiel, O.| Ponsonby, A.-L.| Klebanoff, M.| Olsen, Jø.| Murphy, M.F.G.| Håberg, S.E.| Lemeshow, S.| F Olsen, S.| Qiu, X.| Magnus, P.| Golding, J.| Ward, M.H.| Wiemels, J.L.| Rahimi, K.| Linet, M.S.| Dwyer, T.