@article{10.1706/441.5197,
author = {Ballini, Luciana},
title = {Pragmatic trial: a che punto siamo?},
journal = {Politiche Sanitarie},
volume = {10},
number = {2},
year = {2009},
month = {4},
publisher = {Il Pensiero Scientifico Editore},
issn = {2038-1832},
doi = {10.1706/441.5197},
url = {http://dx.doi.org/10.1706/441.5197},
}