41.   Scientists have found a way to differentiate between several similar childhood cancers, using gene technology and computers that are taught to think like humans.

42.   So far, research has not suggested any link between mothers who smoke and the incidence of childhood cancers.

43.   That, in turn, should step up the pace of research into childhood cancer, Reaman said.

44.   The cancer, called B-cell precursor leukemia, is the most common form of childhood cancer and the second most common form of acute leukemia in adults.

45.   The hospital specializes in research on childhood cancer and accepts patients who cannot afford treatment.

46.   The research focused heavily on the increase in childhood thyroid cancer, an otherwise extremely rare occurrence which is caused by an overdose of iodine to the thyroid glands.

47.   With companion institutions around the world, the hospital has helped dramatically reduce the death rate from leukemia and other childhood cancers.

48.   A number of studies have already suggested a link between fathers smoking and childhood cancers like leukaemia and brain tumours.