Single Article Purchase:
The Number Needed to Be Exposed: A Potential Use for Quantifying the Strength of an Individual Risk Factor Including a Protective Factor in a Cohort Study—Reply
Cerhan JR, Bardia A, Vierkant RA, Vachon CM.
Arch Intern Med. 2007;167(15):1690-1691.
Published online August 13, 2007
Choose criteria for pricing info
Want online access for an institution? Learn More/Request Quote >
Obtain AMA PRA Category 1 Credit™ by reading an article and completing an online quiz. Quizzes are available to AMA Members, subscribers, and those who have purchased tokens.