@article{Rocco2021,
author = {Rocco, P. and Rich, J.A.J. and Klasa, K. and Dubin, K.A. and Béland, D.},
title= {Who counts where? COVID-19 surveillance in federal countries},
year = {2021},
doi = {10.1215/03616878-9349114},
volume = {46},
number = {6},
pages = {959--987},
}