"Bob" wrote in message
. ..

"JoeSpareBedroom" wrote in message
news:81syg.6356
You account for such things as well as you can, and use a big enough
sample so they average out. It's been done for years.

Bob

Formal human tests of pesticide exposure have been very rare, for obvious
reasons. You'll find a few, but nothing statistically significant when
compared with the total size of the market.


Sorry. I'm just refering to the method, not this particular test.

Testing something like this on humans is, of course, rare. Tests on
animals can model effects on humans if properly done.

Bob



There is no agreement on how much can be extrapolated from animal tests. The
chemical companies say the similarities are either valid, or not, depending
on convenience.