Anchor: While most of the published studies found positive (but not always significant) associations with available PM indices such as total suspended particles (TSP), fine particles components (i.e.
Entailed: Positive associations were discovered by most of the published studies.
Contradiction: The published studies all had one thing in common - they had found no positive associations. 
Contradiction: It is impossible to analyze a social setting.
Contradiction: I have never attended a Chicago concert before.
Contradiction: No, not that.  
Contradiction: It's in the neighborhood that's a mile away from the old center.