@article{article092a959a,
title   = {A gap time model based on a multiplicative marginal rate function that accounts for zero-recurrence units},
author = {Louzada, Francisco and Macera, Marcia A. C and Cancho, Vicente Garibay},
year = {2017},
doi = {10.1177/0962280217708669},
journal   = {Statistical Methods in Medical Research}
}