ah                      Fit Additive Hazards Regression Models
ah.2ph                  Fit Additive Hazards Regression Models to
                        Two-phase Sampling
nwtsco                  Dataset from the National Wilms Tumor Study
                        (NWTS)
predict.ah              Prediction Based on the Fitted Additive Hazards
                        Model
predict.ah.2ph          Prediction Based on the Additive Hazards Model
                        Fitted from Two-phase Sampling
