Question: Read News Story 12 in the Appendix Working nights may

Read News Story 12 in the Appendix, “Working nights may increase breast cancer risk.” The story describes two separate observational studies, one by Scott Davis and co-authors and one by Francine Laden and co-authors. Both studies and an editorial describing them are included on the website, and you may need to consult them. For each of the two studies, explain whether
a. A case-control study was used. If it was, explain how the “controls” were chosen.
b. A retrospective or a prospective study was used.



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  • CreatedOctober 22, 2015
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