@article{1177013236,
author = {Breslow, Norman},
title = {[The Role of a Second Control Group in an Observational Study]: Comment},
journal = {Statist. Sci.},
volume = {2},
number = {4},
year = {1987},
pages = { 311-312},
language = {en},
url = {http://dml.mathdoc.fr/item/1177013236}
}
Breslow, Norman. [The Role of a Second Control Group in an Observational Study]: Comment. Statist. Sci., Tome 2 (1987) no. 4, pp. 311-312. http://gdmltest.u-ga.fr/item/1177013236/