To sort out the confusion, Hashibe and her colleagues used statistical techniques to, in effect,make one big study out of the previous smaller studies.
VOA: standard.2010.06.30
And thepreviousstudies have really found that African-Americans and Hispanic and Latino populations were more likely to feel this way.
They argue that thepreviousstudies were flawed because they were too small, and had relied on information about smoking habits from people other than the sufferers themselves.
But then sales dropped just as quickly after studies combed together the results of previousstudies and showed that Natecor seemed to boost the risk of death.