DISCLAIMER:  Any unofficial case summaries below are prepared by the clerk's office
                        as a courtesy to the reader. They are not part of the opinion of the court.

073010P.pdf   08/14/2008  Racheal Bland  v.  Verizon Wireless
   U.S. Court of Appeals Case No:  07-3010
   U.S. District Court for the Southern District of Iowa - Davenport   
   [PUBLISHED] [Riley, Author, with Bowman and Hansen, Circuit Judges]
Civil Case - causation. District court did not abuse its discretion in excluding physician testimony establishing causal link between inhalation of freon and exercise-induced asthma because expert could not conclude based on differential diagnosis that exposure was the most probable cause or was based on a reasonable degree of medical certainty and expert failed to eliminate other possible causes. Expert's lack of knowledge regarding level of exposure needed to risk contracting asthma and amount of actual exposure plaintiff suffered supported lack of basis for causation opinion. Temporal proximity alone was insufficient to support opinion.