Conyn-van Spaendonck, MAErivmde Melker, HErivmAbbink, FElzinga-Gholizadea, NKimman, TGvan Loon, T2025-03-172025-03-172001https://rivm.openrepository.com/handle/10029/638925Immunity to poliomyelitis in the Netherlands - reply to Arya SC [Letter to the editor]ArticleAm J Epidemiol 2001; 154:684-52025-03-17