Delivery by caesarean section and childhood cancer: a nationwide follow-up study in three countries.


OBJECTIVE To investigate the association between delivery by caesarean section and risk of childhood cancer. DESIGN A population-based, follow-up study using register data from three countries. SETTING Denmark, Sweden and Finland. POPULATION Children born in Denmark (1973-2007), Sweden (1973-2006) and Finland (randomly selected sample of 90%, 1987… (More)
DOI: 10.1111/1471-0528.12667