European Journal of Epidemiology
European Journal of Epidemiology > 2019 > 34 > 5 > 483-487
European Journal of Epidemiology > 2019 > 34 > 5 > 489-498
European Journal of Epidemiology > 2019 > 34 > 5 > 483-487
European Journal of Epidemiology > 2019 > 34 > 5 > 489-498