Odhiambo, C., Odhiambo, J., & Omolo, B. (2017). A Smooth Test of Goodness-of-Fit for the Baseline Hazard Function for Time-to-First Occurrence in Recurrent Events: An Application to HIV Retention Data. International Journal of Statistics in Medical Research, 6(3), 104–113. https://doi.org/10.6000/1929-6029.2017.06.03.2