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Clemens JD, Ferreccio C, Levine MM, Horwitz I, Rao MR, Edwards KM, Fritzell B.Clemens JD, et al. Among authors: fritzell b.JAMA. 1992 Feb 5;267(5):673-8.JAMA. 1992.PMID: 1731134Clinical Trial.
Ferreccio C, Clemens J, Avendano A, Horwitz I, Flores C, Avila L, Cayazzo M, Fritzell B, Cadoz M, Levine M.Ferreccio C, et al. Among authors: fritzell b.Pediatr Infect Dis J. 1991 Oct;10(10):764-71. doi: 10.1097/00006454-199110000-00009.Pediatr Infect Dis J. 1991.PMID: 1945579Clinical Trial.
Avendano A, Ferreccio C, Lagos R, Horwitz I, Cayazzo M, Fritzell B, Meschievitz C, Levine M.Avendano A, et al. Among authors: fritzell b.Pediatr Infect Dis J. 1993 Aug;12(8):638-43. doi: 10.1097/00006454-199308000-00003.Pediatr Infect Dis J. 1993.PMID: 8414775Clinical Trial.
Watemberg N, Dagan R, Arbelli Y, Belmaker I, Morag A, Hessel L, Fritzell B, Bajard A, Peyron L.Watemberg N, et al. Among authors: fritzell b.Pediatr Infect Dis J. 1991 Oct;10(10):758-63. doi: 10.1097/00006454-199110000-00008.Pediatr Infect Dis J. 1991.PMID: 1945578Clinical Trial.
Dagan R, Botujansky C, Watemberg N, Arbelli Y, Belmaker I, Ethevenaux C, Fritzell B.Dagan R, et al. Among authors: fritzell b.Pediatr Infect Dis J. 1994 May;13(5):356-62. doi: 10.1097/00006454-199405000-00005.Pediatr Infect Dis J. 1994.PMID: 8072816Clinical Trial.
Barra A, Dagan R, Preud'homme JL, Bajart A, Danve B, Fritzell B.Barra A, et al. Among authors: fritzell b.Vaccine. 1993;11(10):1003-6. doi: 10.1016/0264-410x(93)90124-g.Vaccine. 1993.PMID: 8212818