Authors: M Colombo; G Kuo; Q L Choo; M F Donato; E Del Ninno; M A Tommasini; N Dioguardi; M Houghton Journal: Lancet Date: 1989-10-28 Impact factor: 79.321
Authors: C L Van der Poel; H T Cuypers; H W Reesink; A J Weiner; S Quan; R Di Nello; J J Van Boven; I Winkel; D Mulder-Folkerts; P J Exel-Oehlers Journal: Lancet Date: 1991-02-09 Impact factor: 79.321