Compared with a ten year period beginning in the mid '80s, the breast cancer mortality for this age group dropped nearly 30%. Clearly, mammograms done on women in their late 70s were picking up breast cancers that would have otherwise proved lethal if not detected.
Mystery fiction is a genre of fiction usually involving a mysterious death or a crime to be solved. In a closed circle of suspects, each suspect must have a credible motive and a reasonable opportunity for committing the crime. The central character must be a detective who eventually solves the mystery by logical deduction from facts fairly presented to the reader. Sometimes mystery books are nonfictional.
Detective fiction involves âdetectionâ of a crime. Detective fiction can be a subgenre of both mystery and crime fiction, depending on the type of characters doing the sleuthing, and the storyâs emphasis on the âmystery vs. the âcrimeâ. Sub-genres of detective fiction include hard-boiled, noir, and police procedurals.