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van Alphen L, van Dam A, Bol P, Spanjaard L, Zanen HC.van Alphen L, et al. Among authors: bol p.J Infect. 1987 Jul;15(1):95-101. doi: 10.1016/s0163-4453(87)91626-4.J Infect. 1987.PMID: 3499469
de Marie S, Poolman JT, Hoeijmakers JH, Bol P, Spanjaard L, Zanen HC.de Marie S, et al. Among authors: bol p.J Infect. 1986 Mar;12(2):133-43. doi: 10.1016/s0163-4453(86)93583-8.J Infect. 1986.PMID: 3084660
Caugant DA, Bol P, Høiby EA, Zanen HC, Frøholm LO.Caugant DA, et al. Among authors: bol p.J Infect Dis. 1990 Oct;162(4):867-74. doi: 10.1093/infdis/162.4.867.J Infect Dis. 1990.PMID: 2119401
Spanjaard L, Bol P, de Marie S, Zanen HC.Spanjaard L, et al. Among authors: bol p.J Infect Dis. 1987 Feb;155(2):277-82. doi: 10.1093/infdis/155.2.277.J Infect Dis. 1987.PMID: 3100659
Spanjaard L, Bol P, de Marie S, Zanen HC.Spanjaard L, et al. Among authors: bol p.Bull World Health Organ. 1987;65(6):861-8.Bull World Health Organ. 1987.PMID: 3124970Free PMC article.
Spanjaard L, Bol P, Zanen HC.Spanjaard L, et al. Among authors: bol p.Ned Tijdschr Geneeskd. 1985 Feb 23;129(8):352-5.Ned Tijdschr Geneeskd. 1985.PMID: 3982535Dutch.No abstract available.