Steerenberg, PAvan Asperen, IAvan Nieuw Amerongen, ABiewenga, JMol, DMedema, GJ2025-03-142025-03-141997https://rivm.openrepository.com/handle/10029/637158Salivary levels of immunoglobulin A in triathletes.ArticleEur J Oral Sci 1997; 105:305-92025-03-14