@article{BEIO_2022_38_2_a6,
     author = {David Mori\~na},
     title = {Impact of the {Covid-19} pandemic in health services usage},
     journal = {Bolet{\'\i}n de estad{\'\i}stica e Investigaci\'on operativa},
     publisher = {mathdoc},
     volume = {38},
     number = {2},
     year = {2022},
     url = {http://geodesic.mathdoc.fr/item/BEIO_2022_38_2_a6/}
}