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Lobo CM, Frijling BD, Hulscher ME, Bernsen RM, Braspenning JC, Grol RP, Prins A, van der Wouden JC.Lobo CM, et al. Among authors: bernsen rm.Prev Med. 2002 Nov;35(5):422-9. doi: 10.1006/pmed.2002.1095.Prev Med. 2002.PMID: 12431890Clinical Trial.