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van den Berg AP, van Son WJ, Janssen RA, Brons NH, Heyn AA, Scholten-Sampson A, Postma S, van der Giessen M, Tegzess AM, de Leij LH, et al.van den Berg AP, et al. Among authors: janssen ra.J Infect Dis. 1992 Dec;166(6):1228-35. doi: 10.1093/infdis/166.6.1228.J Infect Dis. 1992.PMID: 1385546