An earlier study by the same team found no link between parents working in the nuclear industry and childhood cancers such as leukaemia and non-Hodgkin's lymphoma.

BBC: Nuclear birth fears eased

Neuroblastoma accounts for around 7% of all childhood cancers.

BBC: Cowell helps cancer toddler fund

Late in the summer ten kids with advanced neuroblastoma, one of the deadliest childhood cancers, began undergoing a radical new gene therapy with a breathtaking goal--to fight the disease not by deploying often inadequate chemotherapy and radiation but by jiggering the immune system to attack tumors it otherwise ignores.

FORBES: Do-It-Yourselfer

According to the National Coalition Against the Misuse of Pesticides, studies of pesticide harm point to everything from elevated rates of childhood leukemias, soft-tissue sarcomas (aggressive tumors), and brain cancers to childhood asthma and other respiratory problems.

CNN: Children face danger in the schoolyard grass from pesticides