Diagnosis clusters......look into polio vaccine made with green monkey kidneys. There were certain batches that were made from sick green monkeys. They had simian virus of some kind. I'd have to look again. Also look for blood types. Blood type A comes down with cancer quicker. Big Pharma denies the green monkey theory but it seems to fit.
The question at the time was, do we let these children die of polio as children or wait until they are mothers etc. The bad vaccines were placed in some schools, not others.
In my case, there were two grade schools. The one with mainly migrant kids got the bad stuff, the one with the smart stable kids got the good. Results: Bad stuff had 7 cases of breast cancer, good stuff had no breast cancer, but one thyroid cancer. That individual had a mother that had died from brain cancer, It does come from other places.
The drs. will tell you this is all bunk, but I believe it.