Authors: P C Lück; J H Helbig; E Wunderlich; H Foelske; M Selbitschka; D Wenzel; L Pätzold; W Witzleb Journal: Infection Date: 1989 Nov-Dec Impact factor: 3.553
Authors: B Hubert; A de Mahenge; F Grimont; C Richard; Y Peloux; C de Mahenge; J Fleurette; P A Grimont Journal: Epidemiol Infect Date: 1991-10 Impact factor: 2.451