Tolerance to sunlight (in minutes) for 13 patients prior to and after treatment with a sunscreen.
A data frame with 13 observations on the following 2 variables.
tolerance to sunlight (minutes) prior to sunscreen application
tolerance to sunlight (minutes) after sunscreen application
Ramsey, F.L. and Schafer, D.W. (2002). The Statistical Sleuth: A Course in Methods of Data Analysis (2nd ed), Duxbury.
Fusaro, R.M. and Johnson, J.A. (1974). Sunlight Protection for Erythropoietic Protoporphyria Patients, Journal of the American Medical Association 229(11): 1420.
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