GBSG                    German Breast Cancer Study Group
bodyfat                 percentage of body fat determined by underwater
                        weighing
cox                     Family Objects for Cox Proportional Regression
                        Models
fp                      Fractional Polynomial Transformation
mfp                     Fit a Multiple Fractional Polynomial Model
mfp.object              Multiple Fractional Polynomial Model Object
predict.mfp             Predict method for mfp fits
