The association between birth order and childhood leukemia may be modified by paternal age and birth weight. Pooled results from the International Childhood Cancer Cohort Consortium (I4C)
Paltiel O., Lemeshow S., Phillips GS., Tikellis G., Linet MS., Ponsonby A-L., Magnus P., Håberg SE., Olsen SF., Granström C., Klebanoff M., Golding J., Herceg Z., Ghantous A., Hirst JE., Borkhardt A., Ward MH., Holst Søegaard S., Dwyer T.