de Waure C, Poscia A, Virdis A, Di Pietro ML, Ricciardi W. Study population, questionnaire, data management and sample description. Ann Ist Super Sanità [Internet]. 2015 Jul. 8 [cited 2024 Nov. 21];51(2):96-8. Available from: https://annali.iss.it/index.php/anna/article/view/183