Evidence Based Medicine (EBM)

Best dx calculator

http://faculty.vassar.edu/lowry/clin1.html

For just LR .

http://www.quesgen.com/Calculators/CIforLR/CIforLR.html

Confidence interval of a proportion

http://faculty.vassar.edu/lowry/prop1.html

http://www.dimensionresearch.com/resources/calculators/conf_prop.html

Vanguards EBM Guideline Project

Stats, Stats, Stats

LR c CI Calculator

Doing emergency studies without consent