Enserink, RLugner, ASuijkerbuijk, ABruijning-Verhagen, PSmit, HAvan Pelt, W2025-03-242025-03-2420142514122610.1371/journal.pone.0104940https://rivm.openrepository.com/handle/10029/647886Gastrointestinal and respiratory illness in children that do and do not attend child day care centers: a cost-of-illness studyArticlePlos One 2014; 9(8):e1049402025-03-24