[alexander_busek]

The stress she and Roger have been under for the past few years may have triggered it. Roger came very close to being Kangaroo Courted to jail. That cloud of Damocles hung over them for a long time.

“What about all these six-year-olds with leukaemia? What’s that from? All their negative thinking?” - Johnny Sack, "The Sopranos"

Regards,

[lee martell]

One answer to your question on the cause of childhood leukemia would be:
A change in the DNA of normal bone marrow cells.
That change is usually described as “Chromosome Translocation”. This and similar DNA mutations can be inheirited.

Regards,