Document VpbLRNMQaE2meBqVMZd3M37o

1 A That's true. Page 202 2 Q And we don't know whether they did brake work 3 or not? 4 A I suppose that's true. 5 Q For any of the individuals that were grouped 6 into that category, garage workers? 7 A You have to infer in most of these studies they 8 did brake work or were overexposed to brake dust. 9 Q That's an assumption that you make? 10 A I think you have to, yeah. 11 Q You have to if you want to rely upon the 12 study, right? 13 A Sure. 14 Q If you don't make that assumption then the 1 15 study doesn't really tell us anything, does it? With 16 regard to the question. 1 17 A If they were misclassified where they never 18 really did brake work and they said they did, then the 19 study would have errors in it. 20 Q In the McDonnell study, for example, they 21 didn't ask people whether they worked on brakes, they 22 just said do you work in a garage? 23 A That's right. 24 Q And for the Spirtas study they classified 25 people as having performed brake lining installation, ESQUIRE DEPOSITION SERVICES (415) 288-4280