Authors: I Miceli; I N de Kantor; D Colaiácovo; G Peluffo; I Cutillo; R Gorra; R Botta; S Hom; H G ten Dam Journal: Int J Epidemiol Date: 1988-09 Impact factor: 7.196
Authors: B Gonzalez; S Moreno; R Burdach; M T Valenzuela; A Henriquez; M I Ramos; R U Sorensen Journal: Pediatr Infect Dis J Date: 1989-04 Impact factor: 2.129