Annals of Epidemiology
Annals of Epidemiology > 2013 > 23 > 8 > 469-474
Annals of Epidemiology > 2013 > 23 > 8 > 475-484
Annals of Epidemiology > 2013 > 23 > 9 > 534-538
Annals of Epidemiology > 2013 > 23 > 8 > 469-474
Annals of Epidemiology > 2013 > 23 > 8 > 475-484
Annals of Epidemiology > 2013 > 23 > 9 > 534-538